Humana CPAP and equipment denied: how to appeal

Quick answer

If Humana denied your CPAP and medical equipment, you can appeal, and the plan must give you its file and the criteria it used. Filing windows by plan type: 65 days from the notice (Medicare Advantage); 65 days from the notice (Part D); 90 days from the notice (TRICARE); at least 180 days (employer self-funded plans). The date printed on your denial notice controls; it can only be later than these floors, never earlier.

Why Humana denies CPAP and medical equipment

Humana is among the top three Medicare Advantage carriers and also operates Tricare and a smaller commercial book. Medicare Advantage prior auth is the highest-volume denial category.

For CPAP and medical equipment specifically: CPAP and BiPAP machines, oxygen, power wheelchairs, hospital beds, and other durable medical equipment are denied for missing documentation, unmet usage requirements, or supplier problems. The rules are specific and the fix is usually paperwork.

The law that controls this appeal

Medicare covers CPAP for obstructive sleep apnea under National Coverage Determination 240.4 after a qualifying sleep study, with continued coverage after the first 90 days only if adherence is documented (use of at least 4 hours a night on 70 percent of nights in a consecutive 30-day period) and the physician documents benefit. Other equipment follows Medicare's DME rules (42 CFR 410.38) and supplier standards. Medicare Advantage plans must follow Medicare coverage rules (42 CFR 422.101(b)). Commercial plans apply their own equipment policies, which must be disclosed on request.

At a glance

Humana appeals: the rule, the deadline and the next level, by plan type

Which row applies depends on the plan you hold, not on Humana's brand. Your ID card, the Summary Plan Description and the denial letter say which.

Plan type	Rule that governs	File your appeal within	The plan must answer	If the plan says no again
Medicare Advantage (Part C) A private plan that replaces Original Medicare. The card says Medicare Advantage, HMO, PPO or PFFS.	42 CFR Part 422, Subpart M (§§ 422.560 to 422.634). Coverage decisions must follow Original Medicare rules (42 CFR 422.101).	65 calendar days from the date on the denial notice to request the plan's reconsideration (42 CFR 422.582, as amended effective 1 January 2025).	Expedited: 72 hours. Standard pre-service: 30 days (7 days for Part B drugs). Payment: 60 days (42 CFR 422.590).	If the plan does not fully reverse itself it must send the case to the Independent Review Entity on its own (42 CFR 422.592); then an ALJ hearing when the amount in controversy meets the annual threshold, the Medicare Appeals Council and federal court. State external review does not apply.
Medicare Part D (drug plan or MA-PD) A stand-alone drug plan or the drug benefit inside a Medicare Advantage plan.	42 CFR Part 423, Subpart M; exceptions under 42 CFR 423.578.	65 calendar days from the date on the notice to request a redetermination (42 CFR 423.582, as amended effective 1 January 2025). Formulary, tiering and step-therapy exceptions need the prescriber's supporting statement (§ 423.578).	Redetermination: 7 calendar days standard, 72 hours expedited (42 CFR 423.590). Coverage determinations: 72 hours standard, 24 hours expedited, once the prescriber's statement is received (§§ 423.568, 423.572).	Independent Review Entity reconsideration on your request within 65 days of the redetermination notice (§ 423.600); then ALJ, Council and court.
TRICARE Active-duty families, retirees and their families. Claims are handled by Humana Military (East) or TriWest (West) under the Defense Health Agency.	32 CFR 199.10 (appeal and hearing procedures) and the TRICARE Operations Manual, Chapter 12. ERISA, the ACA appeal rules and state external review do not apply.	Reconsideration: 90 days from the date of the notice of the initial determination. Formal review by the Defense Health Agency: 60 days from the reconsideration decision. Hearing: 60 days from the formal-review decision (32 CFR 199.10).	Expedited review is available for pre-admission and pre-authorization denials; the contractor's clock for a standard reconsideration is stated in the letter.	Formal review by the DHA, an independent hearing when the amount in controversy meets the threshold in 32 CFR 199.10(d), and a final decision by the DHA Director.
Employer self-funded plan (ERISA) Most large employers. The employer pays the claims and hires the carrier to administer them; the Summary Plan Description says self-funded or self-insured.	ERISA § 503 (29 U.S.C. § 1133) and the claims-procedure rule, 29 CFR 2560.503-1. Federal external review under 45 CFR 147.136(d) for non-grandfathered plans.	At least 180 days from the adverse benefit determination (29 CFR 2560.503-1(h)(3)(i)).	Urgent care: 72 hours. Pre-service: 30 days. Post-service: 60 days (29 CFR 2560.503-1(i)(2)).	Federal external review by an accredited independent review organization, requested within 4 months of the final internal denial (45 CFR 147.136(d)); then a civil action under ERISA § 502(a). State insurance departments do not regulate self-funded plans; the U.S. Department of Labor does.

Medicare Advantage (Part C)

What you can demand. The plan may not apply internal criteria that are more restrictive than Medicare's national and local coverage determinations, and must decide medical necessity on your individual circumstances (42 CFR 422.101(b), (c)). You can ask for the case file and the criteria used.

How to open the appeal. Cite 42 CFR 422.582 and 422.101(c): the plan must decide on your individual circumstances under Medicare coverage rules, and must forward an unfavorable reconsideration to the IRE itself.

Medicare Part D (drug plan or MA-PD)

What you can demand. The exception turns on the prescriber's statement that the formulary alternative would be less effective or would harm you (42 CFR 423.578(b)(5)).

How to open the appeal. Cite 42 CFR 423.578 and 423.582 and attach the prescriber's supporting statement written to the exception standard.

TRICARE

What you can demand. The sponsor, the beneficiary, a participating provider or an appointed representative can appeal. Ask the contractor for the file and the medical-necessity criteria it applied.

How to open the appeal. Cite 32 CFR 199.10 and the benefit rule in 32 CFR 199.4: state the appeal type, address it to the regional contractor named on the letter, and request the criteria used.

Employer self-funded plan (ERISA)

What you can demand. The plan must give you the claim file, the internal rule or criterion it relied on, and the identity of the reviewer, free of charge, on request (29 CFR 2560.503-1(h)(2)(iii), (m)(8)).

How to open the appeal. Cite ERISA § 503 and 29 CFR 2560.503-1 in the opening paragraph: request the claim file and the specific criteria relied on, and note the 30-day (pre-service), 60-day (post-service) and 72-hour (urgent) decision clocks.

Primary sources for this table

Windows are federal floors or the rule as written; the denial notice controls. Reviewed 13 September 2026. General information, not legal advice; Apellica is not a law firm.

What Humana denies for CPAP and medical equipment

The CPAP and medical equipment services most often denied:

CPAP or BiPAP after a home sleep test
Continued CPAP rental after the 90-day compliance period
Power wheelchairs and scooters
Home oxygen
Hospital beds, lifts, and continuous glucose monitors

Why CPAP and medical equipment claims get denied

A typical Humana CPAP and medical equipment denial almost always cites one of these reasons. Each one maps to a specific rebuttal in the appeal:

Sleep study does not show the apnea index the policy requires
Compliance data from the device does not meet the usage threshold
Face-to-face visit or written order missing or undated
Supplier not enrolled or item not on the plan's approved list
Plan says a less costly item meets the need

The Humana appeal process

Appeal levels: Medicare Advantage federal 5-level ladder. Commercial: internal then external review.

Carrier timing: Medicare Advantage: 65 days from the notice for plan reconsideration, automatic forwarding to the IRE, then 60 days for each later level. Commercial: 180 days from denial for internal; generally at least 4 months (120 days) for federal external review (varies by plan and state).

CPAP and equipment timing: Internal appeal: at least 180 days to file for commercial and employer plans; pre-service decisions within 30 days (29 CFR 2560.503-1). Medicare Advantage: 65 days to request reconsideration (42 CFR 422.582). Traditional Medicare: 120 days to request redetermination of a claim (42 CFR 405.942).

What we know about Humana: Humana cases benefit most from level-2 (Maximus) escalation. We don't stop at level 1.

Common Humana denial patterns for CPAP and medical equipment

Five-level Medicare appeal process. Humana Medicare Advantage denials enter the federal appeal ladder: plan reconsideration → IRE (Maximus) → ALJ → Medicare Appeals Council → federal court. Federal data show Medicare Advantage plans overturn a large share of denials once they are appealed, yet very few members appeal; reversal odds stay meaningful through the IRE and ALJ levels.
DME (durable medical equipment) denials. Humana DME denials often cite missing home-evaluation documentation. Re-filing with the home-evaluation packet attached is the most common reversal path.
Skilled nursing and post-acute care. Humana has been the subject of CMS audits on early termination of skilled nursing coverage. Appeals citing CMS coverage manual standards have a documented success record.

How to win your Humana CPAP and medical equipment appeal

Strategy for CPAP and medical equipment: Nearly every CPAP denial after the first three months is an adherence denial, and it is the one situation the supplier pages will not help you with, because Medicare's rule under National Coverage Determination 240.4 is mechanical: at least four hours a night on 70 percent of nights across a consecutive thirty-day window inside the first ninety days. Missing it does not mean the machine was wrong for you, and it does not have to be the end. The appeal that works documents why adherence failed and what has changed: a mask that did not fit or leaked, pressure intolerance that a switch to auto-titrating or bilevel pressure addresses, claustrophobia, nasal obstruction, or a work pattern that made the usage window impossible. Pair that with a new face-to-face visit and a physician statement, because Medicare allows a re-trial after a repeat evaluation and the plan is far more likely to approve equipment the record shows has been adjusted. Where the denial is instead about the qualifying study, check which test was done: many plans now require a home sleep apnea test first and will refuse an in-laboratory study unless the chart documents a reason the home test is unsuitable, such as significant cardiopulmonary disease, suspected central apnea, or a previous inconclusive home test. Naming that exception is usually the whole appeal. Ask in writing for the plan's own coverage policy and for the compliance data the decision relied on, since the download is frequently incomplete or covers the wrong window, and an error in it is the fastest reversal available.

Filed against Humana, that strategy rides on this procedural spine:

Procedural-rights anchor. Cite 42 CFR 422.582 and 422.101(c): the plan must decide on your individual circumstances under Medicare coverage rules, and must forward an unfavorable reconsideration to the IRE itself. If your Humana coverage is a different plan type (Medicare Part D, TRICARE, Employer self-funded plan), use that row of the table above instead; the rule and the deadline change with the plan, not the carrier.
Criteria-disclosure demand. Humana frequently denies on "not medically necessary" without disclosing the clinical criteria applied. Once disclosed, those criteria become the rebuttal map.
Controlling-standard citation. Medicare covers CPAP for obstructive sleep apnea under National Coverage Determination 240.4 after a qualifying sleep study, with continued coverage after the first 90 days only if adherence is documented (use of at least 4 hours a night on 70 percent of nights in a consecutive 30-day period) and the physician documents benefit. Other equipment follows Medicare's DME rules (42 CFR 410.38) and supplier standards. Medicare Advantage plans must follow Medicare coverage rules (42 CFR 422.101(b)). Commercial plans apply their own equipment policies, which must be disclosed on request.
Treating-provider attestation. A letter from the treating physician addressing each criterion in Humana's own policy language. This is the single strongest evidentiary element.
Requested action. A specific demand to reverse the CPAP and medical equipment denial and approve the service, not a general "please reconsider."

Documents you'll need for your Humana CPAP and medical equipment appeal

The denial letter and the plan's equipment policy
Sleep study or diagnostic report
Physician's order and face-to-face visit note
Device compliance or usage report
Supplier documentation and prior authorization records

What a CPAP and medical equipment appeal can recover

Typical recovery for CPAP and medical equipment cases runs Equipment is billed as a purchase or a monthly rental; a denied device or a denied rental period is commonly hundreds to a few thousand dollars at billed charges, and higher for power mobility and oxygen.. The exact figure depends on the specific service and your plan's contracted rates.

Humana CPAP and medical equipment appeals: frequently asked questions

Humana stopped paying for my CPAP after 90 days. Why?

Continued coverage typically depends on documented adherence during the first 90 days plus a physician note that the device is helping. If usage fell short, the physician can document the reason and the fix, and the plan can be asked for a new compliance period.

My home sleep test showed apnea but Humana denied the machine. What is missing?

Usually the index threshold in the policy, the physician's face-to-face note, or a written order with the required elements. Request the policy and compare it to your report.

Does Humana have to follow Medicare's equipment rules?

Medicare Advantage plans may not use coverage criteria more restrictive than traditional Medicare's. Commercial plans set their own, which you can request in writing.

The supplier says the claim was denied, not the doctor. Who appeals Humana?

Either can, and the patient's member appeal carries the patient's own rights, including external or independent review. Ask the supplier for the denial and the claim details.

What Apellica does for Humana CPAP and medical equipment appeals

We file appeals against Humana specifically configured to its internal review process. Every CPAP and medical equipment appeal embeds the criteria-disclosure demand, the procedural-rights anchor, the controlling-standard citation above, treating-provider attestation language, and the peer-reviewed evidence relevant to the denied service.

Cost: $0 upfront. We work on contingency for Humana appeals, if the appeal succeeds, we collect a percentage of the recovered claim value. If it fails, you owe nothing.

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Humana denied your CPAP and medical equipment? Here is what to do next