Denied CPAP Appeals: What Reviewers Decided

Continuous positive airway pressure devices and the humidifiers supplied with them, dispensed for obstructive sleep apnoea and reviewed against sleep-study criteria and adherence requirements.

What the independent reviewers decided

73%

overturned by the independent reviewer

of 33 decisions in the corpus

Source

California DMHC independent medical review determinations, 2017-2026. Public record.

Read this as a base rate, not as your odds

These are decisions about other patients, in one state, that had already been through the plan's own internal appeal and were then sent to an outside reviewer. That population is self-selected toward disputes worth pursuing, so the rate says what happened to cases like this at that stage — not what will happen to a specific claim. It is not medical or legal advice.

Why plans deny CPAP

The sleep study does not meet the policy's threshold on the index it uses.
A home study is submitted where the policy requires an attended one, or the reverse.
Continued coverage is denied for adherence below the policy's usage requirement.
The device or its supplies are replaced sooner than the policy's schedule allows.

What actually carried the cases that won

Diagnostic confirmation led at 67%, ahead of guideline support at 50% — the only device in this corpus where establishing the diagnosis outranked citing a recommendation. The reversals put the study first: the index, the conditions under which it was performed, and any comorbidity the policy treats as lowering the threshold. Adherence denials were answered with the download rather than with argument, and where usage fell short, the reversals explained the interference and what was changed about it.

What the record showed	Share of overturned decisions
The diagnosis was confirmed	67%
A published guideline supported the request	50%
The condition was documented as chronic or long-standing	33%
The severity or urgency was documented	21%
The functional impact on the patient was documented	13%
Objective findings were documented	8%
Conservative treatment was documented as failed	4%

Shares are of the overturned decisions and do not sum to 100% — a single decision often rested on more than one, and some rested on none of these.

What the reviewers cited

Peer-reviewed literature — in 38% of the overturned decisions
Clinical guidelines — in 38% of the overturned decisions
Specialty-society criteria — in 33% of the overturned decisions
Standard of care — in 13% of the overturned decisions

CPAP denials — frequently asked

Is a denied CPAP claim worth appealing?

Roughly three in four denials did not survive: 24 reversals out of 33 California determinations, a small base.

What should the appeal lead with?

The sleep study. Diagnostic confirmation appeared in 67% of the reversals, more than any other factor for this device — the index, the study type and any comorbidity that changes the threshold the policy applies.

How is an adherence denial answered?

With the usage data and an explanation. The reversals supplied the download and, where usage was short, identified the specific interference — mask fit, pressure intolerance, nasal obstruction — and what was changed.

Source

California Department of Managed Health Care — independent medical review determinations

Denial reasons and criteria are described in plain language for reference and vary by plan and policy. This page reports what independent reviewers decided in a public California dataset; it is general information, not medical, legal, or coverage advice.

When the appeal has to be written, and cited

Upload the denied EOB and Merits returns a complete, citation-verified appeal letter — the clinical argument, the payer's own coverage criteria, and your federal appeal rights — in about a minute.

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