HDHP straddle with 10% coinsurance

**Adjudication of Claim 1 for Trinity HDHP 3200 Plan**

Alright, let's walk through how I'm processing this first claim based on the provided Trinity HDHP 3200 plan details and the existing accumulators. This requires a careful look at the aggregate deductible structure and how it interacts with individual and family limits.

First, I'm establishing the context for the plan year (2026-01-01 to 2026-12-31) and key financial parameters. For an in-network family, the deductible is $6,400, and the out-of-pocket maximum (OOPM) is $14,000. A critical detail here is the "AGGREGATE" structure for the deductible, which explicitly states: "The plan pays no coinsurance for any member until total family credits reach the family deductible amount. There is no individual deductible under this structure." This last part is crucial – it means I don't need to worry about an individual hitting a separate $3,200 deductible first. The family aggregate deductible is the only one that matters for initiating coinsurance. The individual OOPM is $7,000, and the plan has no copays.

Now, let's look at where we stand before this claim:
*   Member Deductible: $0.00
*   Member OOPM: $0.00
*   Family Deductible: $5,900.00
*   Family OOPM: $5,900.00

The claim itself is for outpatient chemotherapy, which is in-network. The billed amount is $16,340.00, but the plan's allowed amount is $8,600.00, so that's what I'm working with.

**Adjudication Steps:**

1.  **Deductible Application:**
    *   The remaining family deductible is calculated: $6,400.00 (family deductible) - $5,900.00 (current family deductible accumulator) = $500.00.
    *   Because the plan structure states there's no individual deductible, this $500.00 is the amount that needs to be applied from the allowed charges to satisfy the family deductible.
    *   So, $500.00 is applied to the deductible.
    *   The remaining allowed amount after applying the deductible is: $8,600.00 (allowed) - $500.00 (deductible applied) = $8,100.00.

2.  **Coinsurance Calculation:**
    *   After the deductible is met, coinsurance kicks in at 10% for the member and 90% for the plan.
    *   The member's coinsurance responsibility is 10% of the remaining allowed amount: 0.10 \* $8,100.00 = $810.00.

3.  **Out-of-Pocket Maximum (OOPM) Check:**
    *   I need to ensure that the member's and family's costs don't exceed their respective OOPMs.
    *   The total member cost share for this claim is: $500.00 (deductible) + $810.00 (coinsurance) = $1,310.00.
    *   **Member OOPM:** The member's OOPM accumulator started at $0.00. With this claim, it will be $0.00 + $1,310.00 = $1,310.00. This is well below the individual OOPM limit of $7,000.00, so no OOPM cap applies to the member on this claim.
    *   **Family OOPM:** The family OOPM accumulator started at $5,900.00. With this claim, it will be $5,900.00 + $1,310.00 = $7,210.00. This is below the family OOPM limit of $14,000.00, so no OOPM cap applies to the family on this claim either.

4.  **Accumulator Updates:**
    *   The instruction specifies that "In-network and out-of-network deductible credits accumulate to a SINGLE member deductible balance." Therefore, the member's deductible accumulator will update from $0.00 to $500.00.
    *   The member's OOPM accumulator will update from $0.00 to $1,310.00.

**Final Results for Claim 1:**

Based on these calculations:
*   The total **member_responsibility** for this claim is $1,310.00 ($500.00 deductible + $810.00 coinsurance).
*   The **plan_paid** amount is $8,600.00 (allowed) - $1,310.00 (member responsibility) = $7,290.00.
*   The **deductible_applied** to this claim is $500.00.
*   The **copay_amount** is $0.00, as the plan has no copays.
*   The **coinsurance_amount** for this claim is $810.00.
*   The **ending_member_deductible** accumulator will be $500.00.
*   The **ending_member_oopm** accumulator will be $1,310.00.

All values are formatted as plain numbers with two decimal places, as requested. The aggregate deductible structure was the key point to ensure correct application of funds.

**Adjudication Thought Process for Claim 1**

Alright, my primary objective here is to meticulously adjudicate Claim 1, using the provided plan document and the member's current accumulator balances. Once I've worked through the logic, I need to output the results in a specific JSON format.

First, I'll review the **Plan Document** to understand the benefit structure:
*   The **Family Deductible** is set at $6,400.00.
*   The structure is **Aggregate**, meaning no coinsurance kicks in until the family deductible is fully satisfied. This is a critical point for this claim.
*   The **Out-of-Pocket Maximum (OOPM)** is $7,000.00 for an individual and $14,000.00 for a family, specifically for in-network services.
*   Once the deductible is met, the **coinsurance** split for in-network services is 10% for the member and 90% for the plan.
*   There are **no copays** specified.
*   Preventive services are 100% covered in-network, but that's not relevant here as this is chemotherapy.
*   The basis of payment for member cost share is always calculated from the **allowed amount**, not the billed amount.

Next, I'll examine the **Member Accumulators before Claim 1**:
*   The member's individual deductible is at $0.00.
*   The member's individual OOPM is at $0.00.
*   The family deductible has accumulated $5,900.00 so far.
*   The family OOPM has accumulated $5,900.00 so far.

Now, let's break down **Claim 1** itself:
*   The service is outpatient chemotherapy administration, which is an in-network service.
*   The billed amount is $16,340.00.
*   The allowed amount is $8,600.00. This is the figure I'll be working with for all calculations.

Here's my step-by-step **Adjudication**:

1.  **Deductible Application:**
    *   The family deductible remaining is $6,400.00 (total) - $5,900.00 (accumulated) = $500.00.
    *   Since it's an aggregate deductible structure, the family deductible must be met first.
    *   The member hasn't applied anything to their deductible yet ($0.00).
    *   The allowed amount for this claim is $8,600.00.
    *   I'll apply the remaining $500.00 of the family deductible to this claim.
    *   The remaining allowed amount *after* applying the deductible is $8,600.00 - $500.00 = $8,100.00.
    *   With this application, the family deductible is now met ($5,900.00 + $500.00 = $6,400.00).

2.  **Copay Check:**
    *   As per the plan document, there are no copays. So, the copay amount is $0.00.

3.  **Coinsurance Calculation:**
    *   The remaining allowed amount after the deductible is $8,100.00.
    *   The in-network coinsurance is 10% for the member.
    *   Member's coinsurance responsibility = $8,100.00 * 10% = $810.00.

4.  **Out-of-Pocket Maximum (OOPM) Check:**
    *   Member OOPM remaining: $7,000.00 (total) - $0.00 (accumulated) = $7,000.00.
    *   Family OOPM remaining: $14,000.00 (total) - $5,900.00 (accumulated) = $8,100.00.
    *   The total cost share generated *on this claim* so far is: Deductible applied ($500.00) + Coinsurance ($810.00) = $1,310.00.
    *   Does $1,310.00 exceed the member's remaining OOPM ($7,000.00)? No.
    *   Does $1,310.00 exceed the family's remaining OOPM ($8,100.00)? No.
    *   Therefore, the full cost share calculated applies.
    *   **Member Responsibility** on this claim = Deductible ($500.00) + Copay ($0.00) + Coinsurance ($810.00) = $1,310.00.
    *   **Plan Paid** on this claim = Allowed amount ($8,600.00) - Member Responsibility ($1,310.00) = $7,290.00.

Now, I need to update the member accumulators based on this claim's adjudication:

*   **Ending Member Deductible:** The member's individual deductible accumulator gets credited with the deductible applied to this claim: $0.00 (previous) + $500.00 (applied) = $500.00.
*   **Ending Member OOPM:** The member's individual OOPM accumulator gets credited with their total responsibility on this claim: $0.00 (previous) + $1,310.00 (responsibility) = $1,310.00.

I'll perform a final check on the interpretation of the "SINGLE member deductible balance" and its relationship with the aggregate family deductible. The document states, "In-network and out-of-network deductible credits accumulate to a SINGLE member deductible balance. The amount above is the threshold that balance is measured against when the service is out-of-network." This confirms that while the family deductible is met via an aggregate structure, the individual member's deductible accumulator should reflect the amount applied to meet that family deductible threshold. Similarly, the member OOPM accumulates based on their direct responsibility. My calculations for `ending_member_deductible` and `ending_member_oopm` appear correct based on this.

Finally, I will extract the required **JSON keys** based on my calculations:

*   "member_responsibility": 1310.00
*   "plan_paid": 7290.00
*   "deductible_applied": 500.00
*   "copay_amount": 0.00
*   "coinsurance_amount": 810.00
*   "ending_member_deductible": 500.00
*   "ending_member_oopm": 1310.00

All calculations and logic seem sound and consistent with the plan provisions and the given data.

**Adjudicating a Claim Under Trinity HDHP 3200**

My primary task here is to adjudicate a claim against the "Trinity HDHP 3200" plan document. I need to meticulously review the plan's accumulators and benefit structure to determine the appropriate member responsibility and plan payment.

First, I'm examining the provided accumulators. I see the member deductible is 0.00 and the member out-of-pocket maximum (OOPM) is also 0.00. On the family level, the deductible is 5900.00 and the OOPM is 5900.00. This immediately tells me that whatever the plan's defined limits are, the family has already met a significant portion of their deductible and OOPM.

Next, I'm looking at the plan's detailed structure. The individual in-network deductible is listed as 3200.00, and the family deductible as 6400.00. Crucially, the plan employs an **AGGREGATE** deductible structure for in-network services. This means the plan will not pay any coinsurance for *any* member until the *total family credits* reach the family deductible amount. The wording "There is no individual deductible under this structure" is key here – it overrides any standalone individual deductible listed when it comes to coinsurance application. The out-of-network individual deductible is 6400.00, which is less relevant for this specific in-network claim but good to note.

For the Out-of-Pocket Maximum (OOPM), the individual limit is 7000.00 and the family limit is 14000.00. I'm noting the prompt's clarification that "Once a member reaches the out-of-pocket maximum the plan pays 100%", which implies the OOPM is embedded for the individual limit of 7000.00, and likely for the family as well, though the aggregate nature is more pronounced with the deductible. The plan has no copays, only coinsurance after the deductible is met. The in-network coinsurance is a 10% member / 90% plan split.

Now, I'll process the first and only claim provided: an outpatient chemotherapy service, in-network.
*   **Billed Amount:** 16340.00
*   **Allowed Amount:** 8600.00

I need to apply the plan's rules to the allowed amount.
First, the deductible. The family deductible limit is 6400.00, and the year-to-date (YTD) family deductible is 5900.00. This means there's 6400.00 - 5900.00 = **500.00** remaining on the family deductible.

Since the plan uses an aggregate structure with no individual deductible applied until the family deductible is met, this 500.00 must be satisfied by the member on this claim. This amount is applied to the deductible.

After applying the deductible, the remaining allowed amount is 8600.00 - 500.00 = 8100.00.

Now, coinsurance applies to this remaining amount. The member pays 10% of 8100.00, which is **810.00**.

So, the total member responsibility for this claim is the deductible plus the coinsurance: 500.00 + 810.00 = **1310.00**.

The plan's payment will be the allowed amount minus the member responsibility: 8600.00 - 1310.00 = **7290.00**.

I need to check if any OOPM limits are reached.
*   **Individual OOPM:** The member's OOPM YTD before this claim was 0.00. The total member responsibility for this claim is 1310.00. 0.00 + 1310.00 = 1310.00, which is well below the 7000.00 individual OOPM limit.
*   **Family OOPM:** The family OOPM YTD was 5900.00. Adding the current claim's member responsibility: 5900.00 + 1310.00 = 7210.00, which is also below the 14000.00 family OOPM limit.

Therefore, the full coinsurance amount of 810.00 applies.

I also need to track the accumulators going forward.
*   **Ending Member Deductible:** The plan document states that "In-network and out-of-network deductible credits accumulate to a SINGLE member deductible balance." Before this claim, the member deductible was 0.00. We applied 500.00 towards the deductible, so the ending member deductible balance becomes **500.00**.
*   **Ending Member OOPM:** The member's OOPM YTD was 0.00. The total member responsibility for this claim is 1310.00. So, the ending member OOPM balance is 0.00 + 1310.00 = **1310.00**.

Finally, I'll confirm the values to be reported for Claim 1, ensuring they are formatted as requested with two decimal places.
*   `member_responsibility`: 1310.00
*   `plan_paid`: 7290.00
*   `deductible_applied`: 500.00
*   `copay_amount`: 0.00 (as there are no copays)
*   `coinsurance_amount`: 810.00
*   `ending_member_deductible`: 500.00
*   `ending_member_oopm`: 1310.00

My review confirms the plan structure, the aggregate deductible's impact, and the straightforward application of remaining deductible and coinsurance. The OOPM limits are not a factor for this claim.

```json
{
  "member_responsibility": 1310.00,
  "plan_paid": 7290.00,
  "deductible_applied": 500.00,
  "copay_amount": 0.00,
  "coinsurance_amount": 810.00,
  "ending_member_deductible": 500.00,
  "ending_member_oopm": 1310.00
}
```

**My Thought Process on Claim Processing**

Alright, let's break down this claim for outpatient chemotherapy administration under the Trinity HDHP 3200 plan for 2026. My primary goal here is to accurately determine the member's financial responsibility and the amount the plan will cover.

First, I'm orienting myself with the plan details. I see the core structure is an "Aggregate" deductible plan. This means the family deductible must be met before the plan starts paying coinsurance for anyone. The family deductible is $6,400, and the family out-of-pocket maximum (OOPM) is $14,000. For an individual member, the OOPM is $7,000. Coinsurance kicks in at 10% for the member and 90% for the plan, after the deductible is satisfied. Preventive services are fully covered, but this chemotherapy is explicitly noted as not preventive, so that's out of scope for 100% coverage.

Now, I need to look at the current accumulators for this family. The family has already contributed $5,900 towards their $6,400 deductible. This is crucial. It means there's a remaining $500 of the family deductible that needs to be met before coinsurance applies.

The claim itself is for $16,340 billed, but the allowed amount is $8,600. This is where the plan's negotiated rates come into play. My calculations will be based on the $8,600 allowed amount.

**Step 1: Deductible Application**
The family deductible remaining is $6,400 - $5,900 = $500. This $500 is the first portion of the allowed amount that the member will be responsible for.
So, $500 of the $8,600 allowed amount is applied to satisfy the remaining family deductible.

**Step 2: Remaining Amount for Coinsurance**
After applying the deductible, the remaining allowed amount is $8,600 - $500 = $8,100.

**Step 3: Coinsurance Calculation**
Now, coinsurance applies to this $8,100. The member's responsibility is 10% of this amount: $8,100 * 0.10 = $810.

**Step 4: Member's Total Responsibility**
The total member responsibility for this claim is the deductible applied plus the coinsurance: $500 (deductible) + $810 (coinsurance) = $1,310.

**Step 5: OOPM Check**
I need to ensure this member's responsibility doesn't exceed their individual OOPM. The individual OOPM is $7,000. Their current OOPM accumulator is $0, and their responsibility for this claim is $1,310. Since $1,310 is well below the $7,000 individual OOPM, the full $1,310 applies to their responsibility.

**Step 6: Plan Paid Amount**
The plan pays the rest of the allowed amount after the member's responsibility: $8,600 (allowed) - $1,310 (member responsibility) = $7,290. I can double-check this by calculating the plan's share of the coinsurance: $8,100 * 0.90 = $7,290. This confirms my calculation.

**Step 7: Accumulator Updates**
Now, I update the accumulators.
The member's contribution to the *family* deductible was $500. While the plan document emphasizes "no individual deductible under this structure," it's standard practice to track the individual's contribution towards the family deductible. So, the member's deductible accumulator increases by $500.
The member's out-of-pocket accumulator increases by their total responsibility for this claim: $1,310.

**Clarification on Deductible Structure and "Individual" vs. "Family"**:
I've spent a moment double-checking the aggregate deductible structure. The explicit wording, "There is no individual deductible under this structure," is key. This means the $3,200 listed for "Individual (in-network)" likely pertains to an individual policy scenario, not this family plan. For this family, the $6,400 aggregate family deductible is the threshold. The member's deductible accumulator reflects their personal contribution toward reaching that family threshold. Given the family already had $5,900 in credits, the member only needed to contribute $500 to satisfy the family deductible.

**Summary of the Claim for this Member:**
*   Allowed Amount: $8,600.00
*   Deductible Applied: $500.00
*   Coinsurance Amount: $810.00
*   Copay Amount: $0.00
*   Total Member Responsibility: $1,310.00
*   Plan Paid Amount: $7,290.00
*   Ending Member Deductible Accumulator: $500.00 (This tracks their contribution towards the family deductible)
*   Ending Member OOPM Accumulator: $1,310.00

So, the member owes $1,310, and the plan covers $7,290 for this particular service. The accumulators are updated accordingly for future claims.

**Adjudicating an Outpatient Chemotherapy Administration Claim Under the Trinity HDHP 3200 (Synthetic) Plan**

Alright, let's walk through how I'd process this claim for outpatient chemotherapy administration under the Trinity HDHP 3200 plan. My primary objective here is to accurately determine the member's responsibility and the plan's payment, keeping in mind the specifics of this aggregate deductible plan structure.

First, I need to get a handle on the plan's parameters for 2026. The key figures are: an individual deductible of $3,200 and a family deductible of $6,400, both in-network. The out-of-network individual deductible jumps to $6,400. For out-of-pocket maximums (OOPM), it's $7,000 individually and $14,000 for the family, all in-network. What's crucial here is the "aggregate" structure: the plan won't contribute to any coinsurance until the *entire family* deductible of $6,400 is met. After that, there's a 10% coinsurance for in-network services (40% out-of-network), with no copays. Preventive care is, as expected, fully covered. All cost-sharing is based on the allowed amount, not the billed charge.

Looking at the current accumulators, the member's individual deductible year-to-date (YTD) is $0.00, and their individual OOPM YTD is also $0.00. However, the *family* deductible YTD is $5,900.00, and the family OOPM YTD is also $5,900.00. This tells me we're already partway towards meeting the family's financial obligations for the year.

Now, let's apply this to the current claim. The service is outpatient chemotherapy administration, not listed as preventive, and it's in-network. The billed charge is $16,340.00, but the allowed amount is $8,600.00. This $8,600.00 is the figure I'll work with.

**Step 1: Apply the Deductible.**
Since this is an aggregate plan, I need to look at the *family* deductible. The family deductible is $6,400.00, and we've already accumulated $5,900.00. This means there's $6,400.00 - $5,900.00 = $500.00 remaining to meet the family deductible. The allowed amount for this claim is $8,600.00. So, $500.00 of this allowed amount will be applied to satisfy the remaining family deductible. This leaves $8,600.00 - $500.00 = $8,100.00 of the allowed amount for coinsurance application.

**Step 2: Apply Coinsurance.**
The service is in-network, so the coinsurance is 10% for the member. Applying this to the remaining allowed amount: 10% of $8,100.00 equals $810.00. This is the tentative coinsurance amount the member will be responsible for.

**Step 3: Check Out-of-Pocket Maximum (OOPM).**
I need to ensure that the calculated member responsibility doesn't exceed either the individual or family OOPM.
*   **Individual OOPM:** The individual OOPM in-network is $7,000.00. The member's total responsibility for this claim is $500.00 (deductible) + $810.00 (coinsurance) = $1,310.00. Since $1,310.00 is well below the $7,000.00 individual OOPM, this is fine.
*   **Family OOPM:** The family OOPM in-network is $14,000.00. The current family OOPM accumulator is $5,900.00. Adding the member's responsibility for this claim ($1,310.00) to the family accumulator gives us $5,900.00 + $1,310.00 = $7,210.00. This total is still significantly less than the $14,000.00 family OOPM, so we're within limits.

**Step 4: Final Adjudication for the Claim.**
Based on the above calculations:
*   The deductible applied is $500.00 (this portion of the allowed amount went towards meeting the family deductible).
*   There are no copays, so the copay amount is $0.00.
*   The coinsurance amount is $810.00.
*   The total member responsibility for this claim is the sum of the deductible applied and the coinsurance: $500.00 + $810.00 = $1,310.00.
*   The plan paid the remaining portion of the allowed amount: $8,600.00 - $1,310.00 = $7,290.00.

Now, I need to update the accumulators.
*   The member's individual deductible accumulator, which started at $0.00, will now reflect their contribution towards the family deductible. So, the ending member deductible is $500.00.
*   The member's individual OOPM accumulator, starting at $0.00, will increase by their total responsibility for this claim. So, the ending member OOPM is $0.00 + $1,310.00 = $1,310.00.

It's important to note my understanding of the "aggregate" structure here: the plan pays no coinsurance until the *family* deductible is met. The $500.00 applied to the deductible satisfies the remainder of that $6,400.00 family threshold. After that threshold is hit, the coinsurance of 10% for the member applies to the remaining $8,100.00 of the allowed amount, resulting in the $810.00 coinsurance charge.

My final figures for this claim are:
*   member\_responsibility: 1310.00
*   plan\_paid: 7290.00
*   deductible\_applied: 500.00
*   copay\_amount: 0.00
*   coinsurance\_amount: 810.00
*   ending\_member\_deductible: 500.00
*   ending\_member\_oopm: 1310.00

I've verified that the member responsibility ($1,310.00) plus the plan paid ($7,290.00) equals the allowed amount ($8,600.00). The ending member deductible accurately reflects the $500.00 contribution towards the family aggregate, and the ending member OOPM reflects the total member cost share for this claim. All keys and formatting requirements are met.

**Deconstructing an Outpatient Chemotherapy Claim Under the Trinity HDHP 3200 (2026 Plan Year)**

Alright, I need to meticulously process this outpatient chemotherapy administration claim. My primary goal is to determine the member's financial responsibility and the plan's payout, while accurately tracking the accumulators for the deductible and out-of-pocket maximums.

First, I'm reviewing the plan details. This is a Trinity HDHP 3200, synthetic plan, for the 2026 plan year. The key structural element here is the "AGGREGATE" deductible. This tells me a few critical things: there's no individual deductible that needs to be met before coinsurance kicks in for a particular member; instead, the *entire family deductible* must be satisfied first. The family deductible is $6,400, and the family out-of-pocket maximum (OOPM) is $14,000. For individuals, the deductible is listed as $3,200 and the OOPM as $7,000. Coinsurance is 10% for the member and 90% for the plan *after* the deductible is met, and this applies in-network. Importantly, there are no copays, and preventive care is 100% covered.

Now, for the specific claim:
*   Service: Outpatient chemotherapy administration (in-network).
*   Billed Amount: $16,340.00.
*   Allowed Amount: $8,600.00. This is the figure we work with.
*   Current status: The family deductible has $5,900.00 met so far. This leaves $6,400.00 (family deductible threshold) - $5,900.00 (met) = $500.00 remaining on the family deductible.

My thought process proceeds in steps:

**Step 1: Apply the Deductible.**
Because this is an AGGREGATE plan, the initial $500.00 of the allowed amount ($8,600.00) will go towards satisfying the remaining family deductible.
*   Deductible applied to this claim: $500.00.
*   This means the family deductible is now fully met ($5,900.00 + $500.00 = $6,400.00).
*   The amount remaining from the allowed charge that is now subject to coinsurance is $8,600.00 (allowed) - $500.00 (deductible applied) = $8,100.00.

**Step 2: Apply Coinsurance.**
Since the family deductible is met, coinsurance applies to the remaining $8,100.00. The in-network coinsurance split is 10% member / 90% plan.
*   Member's coinsurance responsibility: 10% of $8,100.00 = $810.00.
*   Plan's coinsurance responsibility: 90% of $8,100.00 = $7,290.00.

**Step 3: Calculate Total Member Responsibility for this Claim.**
The member's total financial responsibility for this specific claim is the sum of the deductible applied and their coinsurance portion.
*   Member responsibility = $500.00 (deductible) + $810.00 (coinsurance) = $1,310.00.

**Step 4: Update and Verify Accumulators.**
Now, I need to update the relevant accumulators and perform cross-checks.

*   **Member Deductible Accumulator:** The plan states "AGGREGATE (Family amount must be met before anyone gets coinsurance. No individual deductible.)" and "In-network and out-of-network deductible credits accumulate to a SINGLE member deductible balance." This means while there's no *individual* deductible threshold to clear before coinsurance starts, we still track how much each member contributes to the *family* deductible. Since this member's claim contributed $500.00 towards the family deductible, and their starting member deductible accumulator was $0.00, their ending member deductible becomes $500.00. This is a crucial distinction for tracking purposes, even in an aggregate plan.
*   **Member OOPM Accumulator:** The member's total responsibility for this claim ($1,310.00) now gets added to their year-to-date OOPM accumulator.
    *   Starting Member OOPM: $0.00.
    *   Member responsibility for this claim: $1,310.00.
    *   Ending Member OOPM = $0.00 + $1,310.00 = $1,310.00.
    *   *Check:* Is this within the individual OOPM limit of $7,000.00? Yes, $1,310.00 < $7,000.00.

*   **Family Deductible Accumulator:** The family deductible is now fully met: $5,900.00 (initial) + $500.00 (from this claim) = $6,400.00.
*   **Family OOPM Accumulator:** The member's responsibility for this claim increases the family OOPM.
    *   Starting Family OOPM: $5,900.00.
    *   Member responsibility for this claim: $1,310.00.
    *   Ending Family OOPM = $5,900.00 + $1,310.00 = $7,210.00.
    *   *Check:* Is this within the family OOPM limit of $14,000.00? Yes, $7,210.00 < $14,000.00.

*   **Overall Claim Calculation Verification:**
    *   Member responsibility: $1,310.00
    *   Plan paid: $7,290.00
    *   Total = $1,310.00 + $7,290.00 = $8,600.00. This matches the allowed amount. Perfect.

**Final Output Values:**
Based on this detailed analysis, the output values are:
*   `member_responsibility`: 1310.00
*   `plan_paid`: 7290.00
*   `deductible_applied`: 500.00
*   `copay_amount`: 0.00 (as expected, no copays)
*   `coinsurance_amount`: 810.00
*   `ending_member_deductible`: 500.00 (this member's contribution to the family deductible)
*   `ending_member_oopm`: 1310.00 (this member's total responsibility year-to-date)

My self-correction and double-checks confirm that the aggregate nature of the deductible was correctly handled, the coinsurance calculation is sound, and all accumulators are updated according to the plan's structure. The logic holds.

Let me work through this carefully.

Plan: Trinity HDHP 3200, aggregate deductible structure.
- Family deductible (in-network): 6400.00, aggregate. No individual deductible under aggregate structure. The plan pays no coinsurance for any member until total family credits reach the family deductible amount.
- Family OOPM: 14000.00; Individual OOPM in-network: 7000.00.

Wait — with aggregate deductible, the family deductible must be met before coinsurance. But OOPM: individual in-network OOPM is 7000.00. So once a member's individual OOP reaches 7000, plan pays 100%.

Accumulators before Claim 1:
- Member deductible YTD: 0.00
- Member OOP YTD: 0.00
- Family deductible YTD: 5900.00
- Family OOP YTD: 5900.00

Claim 1: In-network, allowed 8600.00. Chemotherapy administration — not preventive. Subject to deductible then coinsurance.

Family deductible remaining: 6400 - 5900 = 500.00. Under aggregate structure, the member's claim must satisfy the remaining 500 of the family deductible before coinsurance applies.

So deductible applied on Claim 1: 500.00. Remaining allowed: 8600 - 500 = 8100.00 subject to coinsurance at 10% member = 810.00. Plan pays 90% = 7290.00.

Member responsibility so far: 500 + 810 = 1310.00. Plan paid: 7290.00.

Check OOPM: member OOP after this claim: 0 + 1310 = 1310.00, well under 7000. Family OOP: 5900 + 1310 = 7210.00, under 14000. So no OOPM cap.

Copay: none — 0.00.

Ending member deductible accumulator: 0 + 500 = 500.00.
Ending member OOPM accumulator: 0 + 1310 = 1310.00.

Required fields:
- member_responsibility: 1310.00
- plan_paid: 7290.00
- deductible_applied: 500.00
- copay_amount: 0.00
- coinsurance_amount: 810.00
- ending_member_deductible: 500.00
- ending_member_oopm: 1310.00

Check: member_responsibility + plan_paid = 1310 + 7290 = 8600 = allowed. Good.

Coinsurance calc: 8100 * 0.10 = 810.00 exactly. Good.

Output JSON only.

Alright, let's break down this adjudication process. My primary objective here is to process a single claim for a member under the 'Trinity HDHP 3200' plan. I need to be meticulous and ensure all calculations align with the plan's specific provisions.

First, I'm diving deep into the **Trinity HDHP 3200 plan document** itself. The plan year is 2026-01-01 to 2026-12-31, and this claim falls squarely within it (2026-05-14), so that's good. The real kicker here is the deductible structure. The individual in-network deductible is $3,200, and the family is $6,400. The crucial detail is that it's an **AGGREGATE** deductible. This means the plan *doesn't* pay any coinsurance for *anyone* in the family until the *total family* credits reach that $6,400 family deductible. There's effectively no individual deductible that matters until the family one is satisfied.

Next, I'm looking at the Out-of-Pocket Maximum (OOPM). The individual OOPM is $7,000, and the family OOPM is $14,000. For cost-sharing, it's 10% member / 90% plan coinsurance, but that's *only after* the deductible is met. There are no copays; everything is either deductible or coinsurance. Preventive care is 100% paid, but this "Outpatient chemotherapy administration" is clearly a medical service, not preventive. The basis for all calculations is the "allowed amount."

Before I even touch this new claim, I need to understand where the member and family stand. So, I review their **member accumulators (before Claim 1)**. The member's deductible Year-to-Date (YTD) is $0.00, and their OOPM YTD is also $0.00. However, the family's deductible YTD is already at $5,900.00, and their OOPM YTD is also at $5,900.00. This immediately tells me we're close to meeting the family deductible.

Now, let's **adjudicate Claim 1**. It's for "Outpatient chemotherapy administration," in-network, on 2026-05-14. The billed charge is $16,340.00, but that's not what matters for cost-sharing. The **allowed amount** is $8,600.00. This is the figure I'll work with.

Here's the **step-by-step calculation for Claim 1**:

1.  **Deductible Application:** The plan has an AGGREGATE family deductible of $6,400.00. The family has already accumulated $5,900.00 towards this. So, the remaining family deductible is $6,400.00 - $5,900.00 = $500.00. The allowed amount for this claim ($8,600.00) is more than enough to cover this remaining deductible. Therefore, $500.00 of this claim will go towards satisfying the remaining family deductible. This $500.00 is the member's responsibility and will be applied to both their individual and family accumulators. I'll record this as `deductible_applied` = $500.00.

2.  **Coinsurance Application:** After the deductible is met, the rest of the allowed amount is subject to coinsurance. The amount remaining for coinsurance is the allowed amount minus the deductible applied: $8,600.00 - $500.00 = $8,100.00. The in-network coinsurance for the member is 10%. So, the member's coinsurance amount is $8,100.00 * 0.10 = $810.00. I'll record this as `coinsurance_amount` = $810.00.

3.  **Copay Application:** The plan has no copays, so `copay_amount` = $0.00.

4.  **Total Member Responsibility:** This is the sum of the deductible applied, coinsurance amount, and copay amount: $500.00 + $810.00 + $0.00 = $1,310.00. This is the total out-of-pocket for the member on this claim.

5.  **Plan Paid:** The plan pays the remainder of the allowed amount: $8,600.00 (allowed amount) - $1,310.00 (member responsibility) = $7,290.00. I can double-check this by calculating the plan's coinsurance portion: $8,100.00 (amount subject to coinsurance) * 0.90 (plan's coinsurance %) = $7,290.00. It matches. So, `plan_paid` = $7,290.00.

Next, I need to **check against the OOPM**. The member's total cost share for this claim is $1,310.00. Their starting individual OOPM accumulator is $0.00, and their individual OOPM limit is $7,000.00. Since $1,310.00 is well below $7,000.00, the OOPM limit is not hit on this claim.

Now, I must **update the accumulators** based on this claim:

*   **Member Deductible:** The plan document mentions that individual deductible credits accumulate to a single member deductible balance, and the aggregate structure means no coinsurance until the family deductible is met. However, typically, each member's contribution towards the family deductible is still tracked. The member contributed $500.00 to the family deductible this time. So, their ending member deductible accumulator will be their starting amount plus this contribution: $0.00 + $500.00 = $500.00. So, `ending_member_deductible` = $500.00.

*   **Member OOPM:** The member's out-of-pocket responsibility for this claim was $1,310.00. Their ending member OOPM accumulator will be their starting OOPM plus this claim's responsibility: $0.00 + $1,310.00 = $1,310.00. So, `ending_member_oopm` = $1,310.00.

For my own tracking (not for output), the family deductible is now fully met ($5,900.00 + $500.00 = $6,400.00). The family OOPM accumulator will be $5,900.00 + $1,310.00 = $7,210.00.

Finally, I will **finalize the JSON output** with these calculated values, ensuring they are presented as numbers with two decimal places.

My summary of the thought process looks like this: I've thoroughly reviewed the plan's deductible and OOPM structures, specifically noting the critical aggregate family deductible. I've then processed the claim by first applying the remaining family deductible, then calculating the member's coinsurance, and finally summing up the member's total responsibility. I've also verified that the OOPM was not exceeded and updated both the member's individual deductible and OOPM accumulators. The entire process was cross-checked for mathematical accuracy, and I'm confident in the outcome.

Alright, let's break down this adjudication. My primary task is to process a single claim against the provided plan document and the member's existing accumulator balances.

First, I need to get a firm grasp on the plan itself, the Trinity HDHP 3200. The plan year is clearly defined as January 1, 2026, through December 31, 2026, and thankfully, this claim falls squarely within that period.

The deductible is a critical piece here. For in-network services, the individual deductible is $3200 and the family deductible is $6400. However, the plan document specifies an **AGGREGATE** structure for the deductible. This is the linchpin: the plan will not pay any coinsurance for *any* member until the *total* family credits reach the $6400 family deductible. Essentially, the individual deductible is almost moot in practice because the family threshold must be met first. It's worth noting that out-of-network deductibles are higher, but that's not relevant for this particular claim as it's in-network. Importantly, both in-network and out-of-network deductible credits accumulate towards a single, unified balance.

Next, I looked at the Out-of-Pocket Maximum (OOPM). For in-network services, the individual OOPM is $7000 and the family OOPM is $14000.

Regarding cost-sharing for in-network services, there are no copays. The coinsurance is set at 10% for the member and 90% for the plan, but this only kicks in *after* the deductible has been met. Preventive care is explicitly stated as not applicable to this claim, which makes sense given the nature of chemotherapy.

Now, let's examine the member's starting point. They begin the year with $0.00 in their member deductible accumulator and $0.00 in their member OOPM accumulator. On the family side, they have already accumulated $5900.00 towards the family deductible and $5900.00 towards the family OOPM.

Moving on to adjudicating Claim 1, dated May 14, 2026. The service is outpatient chemotherapy administration, and it's an in-network service. The billed amount was $16340.00, but the amount we work with is the allowed amount, which is $8600.00.

The first step is to apply the deductible. Given the **AGGREGATE** family deductible of $6400.00 and the existing $5900.00 in family accumulation, the remaining family deductible is $6400.00 - $5900.00 = $500.00. The allowed amount for this claim is $8600.00, so the first $500.00 of this claim will be applied to satisfy the remaining family deductible. Therefore, the `deductible_applied` is $500.00.

With the deductible now met, the remaining amount subject to coinsurance is $8600.00 - $500.00 = $8100.00. The in-network coinsurance is 10% for the member. So, the member's coinsurance amount is $8100.00 * 0.10 = $810.00. This means the `coinsurance_amount` is $810.00.

As I noted earlier, the plan has no copays, so the `copay_amount` is $0.00.

Now, I can calculate the member's total responsibility for this claim: Member Responsibility = Deductible Applied + Coinsurance Amount + Copay Amount. This comes out to $500.00 + $810.00 + $0.00 = $1310.00. So, the `member_responsibility` is $1310.00.

The plan's paid amount is the allowed amount minus the member's responsibility: $8600.00 - $1310.00 = $7290.00. Alternatively, I can calculate this as the plan's share of the coinsurance: $8100.00 * 0.90 = $7290.00. Both calculations match, so the `plan_paid` is $7290.00.

I also need to check this against the OOPM. The member started with $0.00 in their OOPM accumulator. Their responsibility for this claim is $1310.00. The individual in-network OOPM is $7000.00. The total OOPM for this member after this claim will be $0.00 + $1310.00 = $1310.00. This is well below the individual OOPM limit, so no OOPM limit is triggered, and my current calculations hold.

Finally, I need to update the accumulators to reflect the state *after* this claim has been processed.

The ending member deductible accumulator will be the starting amount ($0.00) plus the deductible applied from this claim ($500.00), resulting in an `ending_member_deductible` of $500.00.

The ending member OOPM accumulator will be the starting amount ($0.00) plus the total cost share from this claim ($1310.00), resulting in an `ending_member_oopm` of $1310.00.

Just for my own verification, the ending family deductible will be $5900.00 + $500.00 = $6400.00, meaning the family deductible is now fully met. The ending family OOPM will be $5900.00 + $1310.00 = $7210.00.

Looking at the required JSON output fields:
*   `member_responsibility` is $1310.00.
*   `plan_paid` is $7290.00.
*   `deductible_applied` is $500.00.
*   `copay_amount` is $0.00.
*   `coinsurance_amount` is $810.00.
*   `ending_member_deductible` is $500.00.
*   `ending_member_oopm` is $1310.00.

A quick double-check confirms that `member_responsibility` ($1310.00) + `plan_paid` ($7290.00) equals the allowed amount ($8600.00). Also, `deductible_applied` ($500.00) + `copay_amount` ($0.00) + `coinsurance_amount` ($810.00) equals `member_responsibility` ($1310.00). The math and logic appear sound, especially considering the crucial AGGREGATE nature of the deductible.

Alright, let's break down this claim adjudication process. My primary task here is to determine the member's responsibility and the plan's payment for a specific claim, using the provided plan document and member accumulators. This requires a methodical approach, ensuring I fully understand both the plan's intricacies and the member's current standing.

First, I need to get a solid grasp of the plan document itself.
*   I'm looking at the **Trinity HDHP 3200** plan.
*   The relevant plan year runs from **January 1, 2026, to December 31, 2026**.
*   For **in-network** services, the deductible structure is key:
    *   There's an individual deductible of $3200.00 and a family deductible of $6400.00.
    *   Crucially, this plan has an **AGGREGATE** deductible structure for the family. This means the plan won't contribute *anything* financially until the *entire family* has met the $6400.00 deductible. The individual $3200.00 figure isn't a standalone threshold for when the plan starts paying; it's the individual's contribution towards the family's aggregate goal.
*   For **out-of-network** services, the individual deductible is $6400.00, and this, along with in-network contributions, rolls into a combined accumulator.
*   The **in-network out-of-pocket maximum (OOPM)** is $7000.00 for an individual and $14,000.00 for a family.
*   When it comes to cost-sharing after the deductible is met (for **in-network** services), the member is responsible for **10% coinsurance**, and the plan covers **90%**.
*   There are **no copays** under this plan.
*   Preventive care isn't relevant here, as chemotherapy is a treatment, not a preventive service.
*   All calculations are based on the **allowed amount** of the service.

Next, I'll examine the member's current standing at the beginning of this claim:
*   Their individual deductible year-to-date is **$0.00**.
*   Their individual out-of-pocket maximum year-to-date is also **$0.00**.
*   The **family deductible year-to-date** is a critical figure: **$5900.00**.
*   Their family out-of-pocket maximum year-to-date is **$5900.00**.

Now, I can proceed with adjudicating Claim 1:
*   The claim is dated **May 14, 2026**.
*   The service is **outpatient chemotherapy administration**, and it's an **in-network** service.
*   The billed amount is $16,340.00, but the **allowed amount** is **$8600.00**.

Here's how I'll adjudicate this claim, step-by-step:

1.  **Deductible Check:** I need to see how much of the family deductible remains. The plan has an **AGGREGATE** family deductible of $6400.00. The family has already accumulated $5900.00.
    *   Remaining family deductible = $6400.00 - $5900.00 = $500.00.
2.  **Apply Deductible to Claim:** The allowed amount for this claim is $8600.00. The first $500.00 of this allowed amount will go towards satisfying the remaining family deductible.
    *   `deductible_applied` = $500.00. This portion is the member's responsibility.
3.  **Coinsurance Check:** After the deductible is met, I look at the remaining allowed amount: $8600.00 - $500.00 = $8100.00. This remaining amount is subject to coinsurance.
    *   The in-network coinsurance is 10% for the member.
4.  **Apply Coinsurance:**
    *   `coinsurance_amount` = $8100.00 \* 10% = $810.00. This is also the member's responsibility.
5.  **Copay Check:** As noted, there are no copays under this plan.
    *   `copay_amount` = $0.00.
6.  **Total Member Responsibility:** I sum up all the member's financial obligations for this claim.
    *   `member_responsibility` = `deductible_applied` + `coinsurance_amount` + `copay_amount`
    *   `member_responsibility` = $500.00 + $810.00 + $0.00 = $1310.00.
7.  **OOPM Check:** I need to ensure this member responsibility doesn't exceed the out-of-pocket maximum. The member's individual OOPM is $7000.00, and they started with $0.00 accumulated. The $1310.00 in cost share for this claim is well below the remaining OOPM, so the OOPM is not impacted by this claim.
8.  **Plan Paid:** The plan pays the remaining portion of the allowed amount after the member's responsibility.
    *   `plan_paid` = `allowed_amount` - `member_responsibility`
    *   `plan_paid` = $8600.00 - $1310.00 = $7290.00.
    *   Alternatively, the plan pays its share of the coinsurance: $8100.00 \* 90% = $7290.00. This matches, confirming the calculation.
9.  **Ending Accumulators:** Now, I update the member's accumulators based on this claim.
    *   **Ending Member Deductible:** The member contributed $500.00 to the family deductible on this claim. The plan document indicates individual deductible credits accumulate to a single member deductible balance, and though there's no standalone individual deductible threshold, the member's contribution is tracked.
        *   `ending_member_deductible` = $0.00 (start) + $500.00 (applied) = $500.00.
    *   **Ending Member OOPM:** All the member's cost share from this claim (deductible + coinsurance) counts towards their OOPM.
        *   `ending_member_oopm` = $0.00 (start) + `member_responsibility`
        *   `ending_member_oopm` = $0.00 + $1310.00 = $1310.00.

I've double-checked the logic, especially regarding the aggregate deductible, and the calculations align with the plan's provisions. The key was understanding that the family deductible must be met in full before the plan's coinsurance kicks in. The member's individual contribution towards that family deductible is correctly reflected in their updated accumulators.

So, to summarize the final output:
*   `member_responsibility`: $1310.00
*   `plan_paid`: $7290.00
*   `deductible_applied`: $500.00
*   `copay_amount`: $0.00
*   `coinsurance_amount`: $810.00
*   `ending_member_deductible`: $500.00
*   `ending_member_oopm`: $1310.00

Let me work through this claim adjudication carefully.

Plan: Trinity HDHP 3200
- Family deductible: 6400.00 (AGGREGATE structure - family deductible must be satisfied in full before plan pays for any member)
- Family OOPM: 14000.00
- Individual OOPM: 7000.00
- Coinsurance after deductible, in-network: 10% member / 90% plan
- No copays

Accumulators before Claim 1:
- Member deductible credited YTD: 0.00
- Member OOP credited YTD: 0.00
- Family deductible credited YTD: 5900.00
- Family OOP credited YTD: 5900.00

Claim 1:
- Outpatient chemotherapy administration, in-network
- Allowed amount: 8600.00

Aggregate deductible: The family deductible is 6400.00, and family has already credited 5900.00. So we need 500.00 more to reach the family deductible.

This is an aggregate deductible, so the plan pays no coinsurance for any member until total family credits reach the family deductible amount.

Step 1: Apply deductible
- Remaining family deductible: 6400.00 - 5900.00 = 500.00
- The first 500.00 of the allowed amount goes to deductible
- After deductible: 8600.00 - 500.00 = 8100.00 subject to coinsurance

Step 2: Apply coinsurance
- In-network coinsurance: 10% member / 90% plan
- Member coinsurance: 8100.00 × 10% = 810.00
- Plan pays: 8100.00 × 90% = 7290.00

Step 3: Check OOPM
- Member OOPM (individual in-network): 7000.00
- Member OOP credited YTD: 0.00
- Member OOP from this claim: 500.00 (deductible) + 810.00 (coinsurance) = 1310.00
- Member OOP after this claim: 0.00 + 1310.00 = 1310.00
- This is well below 7000.00, so no OOPM issue

Wait, I need to check the OOPM more carefully. The individual OOPM is 7000.00. But with an aggregate deductible, how does the individual OOPM work?

Actually, the member OOP accumulator is 0.00 before this claim, and the family OOP is 5900.00. The member's OOP after this claim would be 1310.00, which is below 7000.00 individual OOPM. So no issue.

Let me also check: does the family OOPM matter here? Family OOP is 5900.00, and after this claim family OOP would be 5900.00 + 1310.00 = 7210.00. That's still below the family OOPM of 14000.00. And even if family OOPM were reached, it's the individual OOPM that matters for this member's cost share.

Wait, actually I need to think about this more carefully. The individual OOPM is 7000.00. Once a member reaches their individual OOPM, the plan pays 100%. The member's OOP is 0.00 before this claim, so they need 7000.00 before hitting OOPM. 1310.00 is well below that.

So:
- member_responsibility = 500.00 + 810.00 = 1310.00
- plan_paid = 7290.00
- deductible_applied = 500.00
- copay_amount = 0.00 (no copays in this plan)
- coinsurance_amount = 810.00
- ending_member_deductible = 0.00 + 500.00 = 500.00
- ending_member_oopm = 0.00 + 1310.00 = 1310.00

Let me verify: member_responsibility + plan_paid = 1310.00 + 7290.00 = 8600.00 = allowed amount ✓

Let me work through this carefully.

We have a Trinity HDHP 3200 plan with an AGGREGATE family deductible structure. The plan pays no coinsurance for any member until total family credits reach the family deductible amount of 6400.00.

Current accumulators before Claim 1:
- Member deductible YTD: 0.00
- Member OOPM YTD: 0.00
- Family deductible YTD: 5900.00
- Family OOPM YTD: 5900.00

Claim 1:
- Outpatient chemotherapy administration, in-network
- Billed: 16340.00
- Allowed: 8600.00
- In-network

This is not a preventive service (chemotherapy administration is not preventive), so it's subject to deductible and coinsurance.

Under the AGGREGATE structure, the family deductible of 6400.00 must be satisfied before the plan pays coinsurance for any member.

Family deductible YTD before Claim 1: 5900.00
Remaining family deductible: 6400.00 - 5900.00 = 500.00

So for Claim 1:
- 500.00 goes toward the remaining family deductible (member responsibility)
- The remaining 8600.00 - 500.00 = 8100.00 is subject to coinsurance

In-network coinsurance: 10% member / 90% plan
Member coinsurance: 8100.00 * 10% = 810.00
Plan paid: 8100.00 * 90% = 7290.00

Member responsibility for Claim 1: 500.00 (deductible) + 810.00 (coinsurance) = 1310.00
Plan paid: 7290.00

Let me verify: 1310.00 + 7290.00 = 8600.00 ✓

Now let me check the OOPM. Individual in-network OOPM is 7000.00.

Before Claim 1:
- Member OOPM YTD: 0.00
- After deductible applied: 500.00
- After coinsurance: 500.00 + 810.00 = 1310.00

Member OOPM after Claim 1: 1310.00 (well under the 7000.00 individual limit)

Family deductible after Claim 1: 5900.00 + 500.00 = 6400.00 (family deductible is now satisfied)
Family OOPM after Claim 1: 5900.00 + 1310.00 = 7210.00

Wait, I need to think about what "ending_member_deductible" means. The task says "member deductible accumulator after all claims."

For an aggregate deductible, the member's deductible is tracked by the family deductible balance. But the accumulators say:
- Member deductible credited year to date: 0.00
- Family deductible credited year to date: 5900.00

After Claim 1:
- The member paid 500.00 toward the family deductible (the remaining 500.00 needed)
- So the member deductible credited YTD would be: 0.00 + 500.00 = 500.00
- The family deductible credited YTD would be: 5900.00 + 500.00 = 6400.00

Actually, wait. Let me reconsider. The member deductible is now 500.00 (what this member has contributed). The family deductible is now 6400.00 (fully satisfied).

For the OOPM:
- Member OOPM YTD: 0.00 + 1310.00 = 1310.00

Now let me also check if the OOPM limit was reached. Individual in-network OOPM is 7000.00. Member OOPM is 1310.00, well under 7000.00. So no OOPM impact on this claim.

Summary for Claim 1:
- member_responsibility: 1310.00
- plan_paid: 7290.00
- deductible_applied: 500.00
- copay_amount: 0.00 (no copays in this plan)
- coinsurance_amount: 810.00
- ending_member_deductible: 500.00
- ending_member_oopm: 1310.00

Let me double-check the math:
- Allowed: 8600.00
- Remaining family deductible: 6400.00 - 5900.00 = 500.00
- Subject to coinsurance: 8600.00 - 500.00 = 8100.00
- Member coinsurance (10%): 810.00
- Plan coinsurance (90%): 7290.00
- Total member: 500.00 + 810.00 = 1310.00
- Total plan: 7290.00
- 1310.00 + 7290.00 = 8600.00 ✓

This looks correct. The key points are:
1. This is an aggregate family deductible, so the family deductible of 6400.00 must be met before any coinsurance
2. Only 500.00 remains of the family deductible
3. Chemotherapy is not preventive, so it's subject to deductible and coinsurance
4. No copays in this plan

The ending_member_deductible should reflect the member's own contributions to the deductible. Since the member had 0.00 before and contributed 500.00, it's now 500.00.

The ending_member_oopm should reflect the member's total cost share. Since the member had 0.00 before and paid 1310.00 (500.00 deductible + 810.00 coinsurance), it's now 1310.00.

I think this is correct. Let me also consider whether the ending_member_deductible should be the family deductible or the member's individual credit. Looking at the initial accumulators:
- Member deductible credited year to date: 0.00 (this is the member's own contribution)
- Family deductible credited year to date: 5900.00 (this is the family total)

So ending_member_deductible should be the member's own contribution, which is 500.00 after this claim.

And ending_member_oopm should be the member's own OOPM, which is 1310.00 after this claim.

Wait, but the OOPM is individual. For OOPM, the individual limit is 7000.00. The member's own OOPM was 0.00, and they paid 1310.00 in cost share. So ending_member_oopm is 1310.00.

But I should also check - is the family OOPM relevant? The family OOPM is 14000.00. But since we're only reporting member OOPM, I'll use the individual amount.

Actually, let me reconsider the OOPM. The family OOPM was 5900.00. But what does that mean for this member's OOPM? In an aggregate plan, the OOPM is typically also aggregate. But the plan document says:
- Individual (in-network) OOPM: 7000.00
- Family (in-network) OOPM: 14000.00

And the accumulators show:
- Member OOPM credited year to date: 0.00
- Family OOPM credited year to date: 5900.00

Hmm, so the family has already accumulated 5900.00 in OOPM, but this member has 0.00. In an aggregate OOPM structure, the family OOPM must be reached. But wait, the plan document only specifies aggregate structure for the deductible, not for the OOPM. Let me re-read:

"Structure .............................. AGGREGATE — the plan pays no coinsurance for any member until total family credits reach the family deductible amount. There is no individual deductible under this structure."

This only mentions the deductible structure. For OOPM, the plan says:
"Once a member reaches the out-of-pocket maximum the plan pays 100% of the allowed amount for covered services for the remainder of the plan year."

This says "once a member reaches the out-of-pocket maximum." This suggests the OOPM is individual, not aggregate. So even though the family OOPM is 14000.00, the individual OOPM of 7000.00 applies per member.

But wait, in typical HDHP plans with aggregate deductibles, the OOPM is often also aggregate. But the plan document says "Once a member reaches the out-of-pocket maximum..." which sounds individual.

Let me just go with what the document says. The document mentions individual and family OOPM limits, and says "once a member reaches the out-of-pocket maximum." I think the individual OOPM of 7000.00 applies.

For this claim:
- Member OOPM before: 0.00
- Member cost share: 1310.00
- Member OOPM after: 1310.00
- Individual OOPM limit: 7000.00
- 1310.00 < 7000.00, so no OOPM impact

So the ending_member_oopm is 1310.00.

I think my answer is correct. Let me finalize:

- member_responsibility: 1310.00
- plan_paid: 7290.00
- deductible_applied: 500.00
- copay_amount: 0.00
- coinsurance_amount: 810.00
- ending_member_deductible: 500.00
- ending_member_oopm: 1310.00

Let me work through this claim carefully.

Plan: Trinity HDHP 3200
- Aggregate family deductible: 6400.00
- Family deductible credited YTD: 5900.00
- Family OOPM credited YTD: 5900.00
- Individual OOPM (in-network): 7000.00
- Family OOPM (in-network): 14000.00
- Member deductible credited YTD: 0.00
- Member OOPM credited YTD: 0.00

Aggregate deductible means the family deductible must be fully satisfied before the plan pays for any member.

Claim 1: In-network, allowed amount 8600.00

First, the family deductible: 6400.00 - 5900.00 = 500.00 remaining to satisfy family deductible.

Since it's aggregate, no member gets coinsurance until family deductible is met. So the first 500.00 of this claim goes to deductible.

After deductible is satisfied, remaining allowed = 8600.00 - 500.00 = 8100.00

Now coinsurance applies: 10% member / 90% plan
Member coinsurance = 8100.00 * 10% = 810.00
Plan pays = 8100.00 * 90% = 7290.00

Now check OOPM. Member OOPM accumulator starts at 0.00.

Member responsibility = deductible 500.00 + coinsurance 810.00 = 1310.00

Wait, but we need to check against member OOPM. Member OOPM is 0.00, and individual in-network OOPM is 7000.00. So member is well below OOPM.

But wait - the family OOPM is 14000.00 and family OOPM credited is 5900.00. Does family OOPM matter here?

Actually, let me reconsider. The plan says "Once a member reaches the out-of-pocket maximum the plan pays 100%." This is about member OOPM, not family. The member OOPM is 0.00, so no OOPM reached.

But wait - for aggregate deductible, the family deductible is what matters. Family deductible remaining = 6400 - 5900 = 500.

So:
- Deductible applied: 500.00
- Remaining: 8100.00
- Coinsurance (member 10%): 810.00
- Plan paid: 7290.00
- Member responsibility: 1310.00

Now updating accumulators:
- Member deductible: 0.00 + 500.00 = 500.00? 

Wait, actually with aggregate deductible, the "member deductible credited" - how does this work? The family deductible is aggregate, meaning there's no individual deductible. The family deductible accumulator goes from 5900 to 6400. The member deductible... hmm.

Actually, let me think about this. The plan says "There is no individual deductible under this structure." So member deductible credited would track what this member has paid toward the family deductible. So member deductible = 500.00 after this claim.

Family deductible after: 5900 + 500 = 6400.00 (fully met)

Member OOPM: 0.00 + 1310.00 = 1310.00
Family OOPM: 5900.00 + 1310.00 = 7210.00

Let me verify: member_responsibility + plan_paid = 1310.00 + 7290.00 = 8600.00 ✓

Final answers:
- member_responsibility: 1310.00
- plan_paid: 7290.00
- deductible_applied: 500.00
- copay_amount: 0.00
- coinsurance_amount: 810.00
- ending_member_deductible: 500.00
- ending_member_oopm: 1310.00