Appeal review

CASE-005

Continuous positive airway pressure device, auto-adjusting, with heated humidifier (+1 more) · NORTHBECK HEALTH PLAN
Escalated to the next appeal level

Patient: Tristan Kihn · member NBH-4417-58203
Amount denied: $1,940.00
Not extracted as a field. Intake recorded: “Total billed amount of $1,940.00 was provided for the entire request, not broken down by individual service line items.”
Appeal deadline: 17 January 2027 · 79 days remaining

This case escalated itself

No answer came back within the 14-day window on the peer-to-peer review, so this case moved itself to second-level appeal. Nobody asked it to.

Was on: Peer-to-peer review · 14-day response window, which lapsed
Now on: Second-level appeal · rung 3 of 4 · escalated 2 times
Moved: 12 October 2026, 17:45 UTC
by orchestrator on the schedule — no person was involved
Reason recorded: A peer-to-peer review request was submitted on September 28, 2026, and the payer's 14-day response window closed on October 12, 2026. Because no response was received from the payer, the case is now a
On these dates: The response window is compressed for the demonstration, so the move happened within a minute of submission rather than after thirty days. What is real is the mechanism: nothing was running in between, and a scheduled job moved the case on its own once the recorded window had lapsed.
Payer response due: 11 November 2026, 17:45 UTC · 30-day window, 12 days left
If nothing comes back by then it escalates again, to independent external review, without being asked.

The drafted letter — attempt 1

Subject: Appeal of Coverage Denial for Continuous Positive Airway Pressure Device - Claim CLM-2026-0707-52210 - Member ID NBH-4417-58203

RE: Appeal of Claim Denial Claim Number: CLM-2026-0707-52210 Member ID: NBH-4417-58203 Denied Service: Continuous positive airway pressure device, auto-adjusting, with heated humidifier and 1 other line item(s) To Whom It May Concern: We are writing to appeal the denial of coverage for the continuous positive airway pressure (CPAP) device and related items for the member referenced above. The stated reason for denial was that submitted documentation did not establish that the sleep study demonstrates a qualifying apnea-hypopnea index under the applicable medical policy. The medical record contains documentation satisfying all applicable policy requirements under NBH-PULM-008-3 and NBH-PULM-008-4: 1. Sleep Study Requirement (NBH-PULM-008-3.1 and NBH-PULM-008-4.1): The record documents that the member underwent a home sleep apnea test on June 1, 2026, interpreted by Dr. J. Okonkwo, a clinician board-certified in sleep medicine. The full report includes the study date (June 1, 2026), total recording time of 6 hours 40 minutes with adequate signal quality, and the interpreting clinician. 2. Qualifying Apnea-Hypopnea Index (NBH-PULM-008-3.2 and NBH-PULM-008-4.1): NBH-PULM-008-3.2 requires a sleep study documenting an apnea-hypopnea index of 15 or more events per hour, or 5 to 14 events per hour with specified comorbid conditions. The sleep study report of June 1, 2026 documents an apnea-hypopnea index of 28.4 events per hour, meeting the criterion of 15 or more events per hour. 3. Pre-Study Clinical Evaluation (NBH-PULM-008-3.3 and NBH-PULM-008-4.2): A face-to-face clinical evaluation addressing suspected sleep-disordered breathing was performed and documented on May 18, 2026, which predates the June 1, 2026 sleep study. 4. Device Instruction (NBH-PULM-008-3.4): The medical record documents that on July 10, 2026, the member completed device setup and a structured instruction session on the use and maintenance of the prescribed auto-adjusting positive airway pressure device and heated humidifier. Because the medical record documents a qualifying apnea-hypopnea index of 28.4 events per hour and satisfies all documentation criteria under policy sections NBH-PULM-008-3 and NBH-PULM-008-4, we request that Northbeck Health Plan overturn this denial and approve coverage for the requested continuous positive airway pressure device and accessories.

Requested action: Overturn the denial and approve coverage for the continuous positive airway pressure device, auto-adjusting, with heated humidifier and related line items.

Attempt 1, and Verification passed it. Nothing was sent back.

Your decision

Submission status

This appeal has been transmitted to the payer.

Signed

Billing clerk — R. Gole (billing)

Confirms the paper trail: that the cited sections exist, that the quoted policy text matches its source, and that no claim outruns the matrix.

Approved drafting attempt 1 on 29 August 2026, 17:36 UTC.
Signed

Ordering clinician — M. Castellanos, MD

Attests to the clinical argument: that the letter's account of the care and the chart is accurate. A clerk is not in a position to judge this.

Co-signed drafting attempt 1 on 29 August 2026, 17:36 UTC, NPI 1234567893.

What this system has learned about NORTHBECK HEALTH PLAN

No prior appeals are on record against NORTHBECK HEALTH PLAN on this policy and reason code. This is the first one, or the earliest this system has seen.

Recorded from every case sharing this payer, policy and denial reason code -- never from this case's own patient data.

What the letter claims, and the policy text behind it

One row per checkable claim the letter makes. The second column is the insurer's own words, quoted from the policy set Retrieval returned — this is what the second confirmation above asks you to check. Anything flagged sorts to the top, and every flag here belongs to the attempt on screen.
What the letter asserts	The policy text behind it	Chart evidence	Verdict
NBH-PULM-008-3.1 Requires that the member has undergone a sleep study (in-laboratory polysomnogram or home sleep apnea test) interpreted by a qualified clinician within twenty-four months preceding the request.	The member has undergone a sleep study, either an in-laboratory polysomnogram or a home sleep apnea test, interpreted by a qualified clinician, within the twenty-four months preceding the request.	Home sleep apnea test performed the night of 1 June 2026 and interpreted by Dr. J. Okonkwo, board-certified in sleep medicine. enc/2026-06-01/sleep-study	Satisfied NBH-PULM-008-3.1
NBH-PULM-008-3.2 Requires a sleep study documenting an apnea-hypopnea index of 15 or more events per hour, or 5 to 14 events per hour with specified clinical conditions.	The sleep study documents an apnea-hypopnea index of 15 or more events per hour; or an apnea-hypopnea index of 5 to 14 events per hour accompanied by at least one of: documented excessive daytime sleepiness, hypertension, ischaemic heart disease, or a history of stroke.	Apnea-hypopnea index 28.4 events per hour, consistent with moderate to severe obstructive sleep apnea. enc/2026-06-01/sleep-study	Satisfied NBH-PULM-008-3.2
NBH-PULM-008-3.3 Requires that a face-to-face clinical evaluation addressing sleep-disordered breathing has been performed and documented prior to the sleep study.	A face-to-face clinical evaluation addressing sleep-disordered breathing has been performed and documented prior to the sleep study.	Sixty year old man referred by primary care for a face-to-face evaluation of suspected sleep-disordered breathing. enc/2026-05-18/sleep-medicine	Satisfied NBH-PULM-008-3.3
NBH-PULM-008-3.4 Requires that the member has received, or is scheduled to receive, instruction in the use and maintenance of the device and its interface.	The member has received, or is scheduled to receive, instruction in the use and maintenance of the device and its interface.	Completed device setup and a structured instruction session on the use and maintenance of the prescribed auto-adjusting positive airway pressure device and heated humidifier. enc/2026-07-10/dme-training	Satisfied NBH-PULM-008-3.4
NBH-PULM-008-4.1 Requires documentation of the complete sleep study report, including the apnea-hypopnea index, study date, and interpreting clinician.	The complete sleep study report, including the apnea-hypopnea index, the study date, and the interpreting clinician.	Home sleep apnea test performed the night of 1 June 2026 and interpreted by Dr. J. Okonkwo, board-certified in sleep medicine. Total recording time 6 hours 40 minutes with adequate signal quality throughout. Apnea-hypopnea index 28.4 events per hour, consistent with moderate to severe obstructive sleep apnea. enc/2026-06-01/sleep-study · 2026-06-01	Satisfied NBH-PULM-008-4.1
NBH-PULM-008-4.2 Requires documentation of the clinical note for the face-to-face evaluation required under section 3.3, with its date.	The clinical note documenting the face-to-face evaluation required under section 3.3, with its date.	Sixty year old man referred by primary care for a face-to-face evaluation of suspected sleep-disordered breathing. enc/2026-05-18/sleep-medicine · 2026-05-18	Satisfied NBH-PULM-008-4.2

The letter also cites NBH-PULM-008-3, the parent section holding NBH-PULM-008-3.1, NBH-PULM-008-3.2, NBH-PULM-008-3.3, NBH-PULM-008-3.4. A citation to a whole section is not a claim you can check on its own; its requirements are the rows above, one at a time.

The rest of the record

How this letter got here — 1 attempt

An attempt that verification sent back is shown here in full: the system catching its own error is evidence, not something to hide. Attempt 1 passed, checked by gemini-3.5-flash.

Attempt 1 — Passed verification

The full criteria mapping — 6 criteria, 6 satisfied

The patient is a 60-year-old male who was evaluated face-to-face on May 18, 2026, for suspected sleep-disordered breathing. He subsequently underwent a home sleep apnea test on June 1, 2026, interpreted by a qualified sleep medicine physician, which confirmed moderate to severe obstructive sleep apnea with an AHI of 28.4. On July 10, 2026, he received instruction and training in the use and maintenance of his prescribed positive airway pressure device before it was dispensed.

Whether the chart documents what the payer's own policy asks for. This is a documentation judgement, not a clinical one. There is no confidence column: a clerk cannot act differently at ninety-four percent than at eighty-eight, and there is no third thing they do at one hundred. Read the evidence.
Criterion	Verdict	Chart evidence
NBH-PULM-008-3.1 The member has undergone a sleep study, either an in-laboratory polysomnogram or a home sleep apnea test, interpreted by a qualified clinician, within the twenty-four months preceding the request. Policy section NBH-PULM-008-3	Satisfied The patient underwent a home sleep apnea test on June 1, 2026, which was interpreted by Dr. J. Okonkwo, a board-certified sleep medicine clinician, within 24 months of the request.	Home sleep apnea test performed the night of 1 June 2026 and interpreted by Dr. J. Okonkwo, board-certified in sleep medicine. enc/2026-06-01/sleep-study
NBH-PULM-008-3.2 The sleep study documents an apnea-hypopnea index of 15 or more events per hour; or an apnea-hypopnea index of 5 to 14 events per hour accompanied by at least one of: documented excessive daytime sleepiness, hypertension, ischaemic heart disease, or a history of stroke. Policy section NBH-PULM-008-3	Satisfied The home sleep apnea test documented an apnea-hypopnea index of 28.4 events per hour, which is greater than the required threshold of 15 events per hour.	Apnea-hypopnea index 28.4 events per hour, consistent with moderate to severe obstructive sleep apnea. enc/2026-06-01/sleep-study
NBH-PULM-008-3.3 A face-to-face clinical evaluation addressing sleep-disordered breathing has been performed and documented prior to the sleep study. Policy section NBH-PULM-008-3	Satisfied A face-to-face clinical evaluation for sleep-disordered breathing was conducted on May 18, 2026, which is prior to the home sleep apnea test performed on June 1, 2026.	Sixty year old man referred by primary care for a face-to-face evaluation of suspected sleep-disordered breathing. enc/2026-05-18/sleep-medicine
NBH-PULM-008-3.4 The member has received, or is scheduled to receive, instruction in the use and maintenance of the device and its interface. Policy section NBH-PULM-008-3	Satisfied The patient completed a structured instruction session on the use and maintenance of the device with respiratory therapy on July 10, 2026.	Completed device setup and a structured instruction session on the use and maintenance of the prescribed auto-adjusting positive airway pressure device and heated humidifier. enc/2026-07-10/dme-training
NBH-PULM-008-4.1 The complete sleep study report, including the apnea-hypopnea index, the study date, and the interpreting clinician. Policy section NBH-PULM-008-4	Satisfied The record contains the sleep study report from June 1, 2026, which was interpreted by Dr. J. Okonkwo and shows an apnea-hypopnea index of 28.4 events per hour.	Home sleep apnea test performed the night of 1 June 2026 and interpreted by Dr. J. Okonkwo, board-certified in sleep medicine. Total recording time 6 hours 40 minutes with adequate signal quality throughout. Apnea-hypopnea index 28.4 events per hour, consistent with moderate to severe obstructive sleep apnea. enc/2026-06-01/sleep-study · Diagnostic study · 2026-06-01
NBH-PULM-008-4.2 The clinical note documenting the face-to-face evaluation required under section 3.3, with its date. Policy section NBH-PULM-008-4	Satisfied The record includes the office visit note dated May 18, 2026, which documents the pre-study face-to-face clinical evaluation.	Sixty year old man referred by primary care for a face-to-face evaluation of suspected sleep-disordered breathing. enc/2026-05-18/sleep-medicine · Office visit · 2026-05-18

2 criteria could not be evaluated at all: NBH-PULM-008-6.1, NBH-PULM-008-6.2 Each was put to the model and came back without a verdict. That is a gap in what we know, not a criterion ruled irrelevant — a criterion written for a service other than the one denied gets its own not_applicable row above. Unevaluated rows count against the case: the basis for appealing is tested as though every one of them were unmet.

The denial letter as received — 2 line items

Payer

NORTHBECK HEALTH PLAN

Claim number

CLM-2026-0707-52210

Patient

Tristan353 Kihn564

Member id

NBH-4417-58203

Service denied

Continuous positive airway pressure device, auto-adjusting, with heated humidifier CPT/HCPCS E0601 · ICD-10 G47.33
Positive airway pressure device accessory, combination oral/nasal mask CPT/HCPCS A7034 · ICD-10 G47.33

Payer's stated reason

The clinical information submitted does not establish that a positive airway pressure device is medically necessary under the plan's applicable medical policy. Specifically, the submitted documentation does not establish that the sleep study demonstrates a qualifying apnea-hypopnea index.

Reason code NBH-NMN-16

Date of denial

21 July 2026

Appeal deadline

17 January 2027 · 79 days remaining

Appeal level

second level appeal

Last updated

12 October 2026, 17:45 UTC

Intake noted: Total billed amount of $1,940.00 was provided for the entire request, not broken down by individual service line items.

Audit trail — 10 recorded events, 5 traces

No threats found in the source document. Detectors that ran: rules, model_armor:enabled, gemma.

Personal data seen: None recorded — expected in a denial letter; recorded, not blocked.
Screened content hash: def037a20d11d8d9…

10 recorded invocations across 5 traces — this case was picked up more than once, which is what a multi-week lifecycle looks like in a tracing backend.

Trace 97b62430d801378702e6449e3921dc13

Trace 18f68777e330accc7cece468003a36ea

Trace e02acbb07aec333bb70b7c6710637c9c

Trace cda6b0e22310bbd878ed101ca49454e5

Trace 075eb045b17e1fec95edce033e25393f

When	Agent	Operation	Decision
29 August 2026, 02:00 UTC	sentinel	screen span 2a3ab3905b69feb8	clean (rules, model_armor:enabled, gemma)
29 August 2026, 02:00 UTC	intake	extract span b7ff0c3e9181b83e	2 service(s) via text layer; appeal deadline 2027-01-17
29 August 2026, 02:00 UTC	retrieval	reformulate span 4258745bd38dc682	retrieved NBH-PULM-008 (7 sections, 8 criteria) at similarity 0.168
29 August 2026, 02:01 UTC	mapping	map_section span 92c53471f9fe756c	6 criteria evaluated (6 satisfied); appealable basis: True; 3 verdict(s) adjusted in validation; 2 criteria not evaluated
29 August 2026, 02:01 UTC	drafting	compose span 674e788a708e3911	attempt 1: 7 citation(s), 5 clinical assertion(s), 2384 characters
29 August 2026, 02:02 UTC	verification	verify span cdeb97011eadf43d	attempt 1 PASSED: 7 citation(s) verified against source text, all assertions grounded
29 August 2026, 17:36 UTC	orchestrator	human_approval span 3ab8f0341b8b9d2c	approved: attempt 1 may be transmitted to the payer
29 August 2026, 17:36 UTC	orchestrator	clinician_cosign span 4757d2b5bfca9855	co-signed: attempt 1 clinical argument attested
28 September 2026, 17:40 UTC	lifecycle	decide span 801e703feea0d64f	first_level_appeal -> peer_to_peer_review via request_peer_review; new window 14 days; needs a person
12 October 2026, 17:45 UTC	lifecycle	decide span 6f98f36cc92f8dce	peer_to_peer_review -> second_level_appeal via escalate; new window 30 days

CASE-005

This case escalated itself

The drafted letter — attempt 1

Your decision

Approved by R. Gole (billing)

Submission status

Billing clerk — R. Gole (billing)

Ordering clinician — M. Castellanos, MD

Transmitted to NORTHBECK HEALTH PLAN

What this system has learned about NORTHBECK HEALTH PLAN

What the letter claims, and the policy text behind it

The rest of the record