Can Humana use its own imaging rules instead of Medicares?

Only where Medicare coverage is not fully established. Since 2024, CMS requires Medicare Advantage plans to follow Traditional Medicare coverage rules and forbids internal criteria more restrictive than an applicable National or Local Coverage Determination. Ask Humana in writing which NCD or LCD applies and what criteria it used.

How long do I have to appeal a Humana imaging denial?

For Medicare Advantage the window is 65 days from the date of the denial notice — far shorter than the 180 days commercial plans allow. A standard pre-service appeal must be decided within 30 days, and an expedited one within 72 hours.

Do I really have to try physical therapy before an MRI?

Often, but not always. Guidelines commonly expect a documented trial of conservative care for routine back or joint pain. Red-flag findings — progressive neurological deficit, suspected cancer, unexplained weight loss, fever, or significant trauma — are recognized exceptions, so make sure the order and chart note state them clearly if they apply to you.

Guides · Humana · appeals · Updated August 2026

How to appeal a Humana MRI or imaging denial

Humana is one of the largest Medicare Advantage insurers, and advanced imaging is one of the most heavily prior-authorized services it sells. The good news is that a Medicare Advantage plan does not get to invent its own coverage rules — and the appeal deadlines run in days, not months.

Why Humana denies this

Humana routes MRI, CT, and PET requests through prior authorization and denies them most often for "conservative therapy not documented" or "does not meet medical necessity criteria," frequently applying a proprietary imaging guideline. The strongest counter is regulatory rather than clinical. Under the CMS rule that took effect in 2024, Medicare Advantage plans must follow Traditional Medicare coverage rules and may not apply internal criteria that are more restrictive than an applicable National or Local Coverage Determination; internal criteria are only permitted where Medicare coverage is not fully established, and the plan must disclose them publicly. So a Humana denial that rests on a stricter in-house imaging rule than the governing NCD or LCD is challengeable on its face. The clock is also short and works in your favor: a pre-service Medicare Advantage appeal must be decided within 30 days, or 72 hours if expedited, and if Humana upholds the denial it must automatically forward the case to an independent review entity rather than making you refile.

What wins the appeal

Ask Humana in writing for the specific criteria used and whether coverage is governed by an NCD or LCD — that single request often reframes the case. Then have the ordering physician document the two things reviewers actually look for: a documented trial of conservative treatment with dates and outcomes, typically around six weeks of physical therapy, medication, or activity modification, and the clinical reason imaging is needed now. Red-flag findings short-circuit the conservative-care requirement entirely, so lead with them if present — progressive neurological deficit, suspected malignancy, unexplained weight loss, fever, trauma, or a history of cancer. Attach the actual chart notes rather than a summary; reviewers deny what they cannot see. Request an expedited appeal whenever a delay would seriously jeopardize your health or function, which pulls the decision to 72 hours. Note that the pre-service Medicare Advantage appeal window is 65 days from the denial notice, much shorter than the 180 days commercial members get — and if you are already at the hospital or the scan is urgent, say so in the first sentence.

Your deadline

Depends on your plan type: 180 days for most employer and marketplace plans, 120 for Original Medicare, ~90 for Medicaid, and only 65 for Medicare Advantage. Set it before you do anything else.

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Common questions

Can Humana use its own imaging rules instead of Medicares?: Only where Medicare coverage is not fully established. Since 2024, CMS requires Medicare Advantage plans to follow Traditional Medicare coverage rules and forbids internal criteria more restrictive than an applicable National or Local Coverage Determination. Ask Humana in writing which NCD or LCD applies and what criteria it used.
How long do I have to appeal a Humana imaging denial?: For Medicare Advantage the window is 65 days from the date of the denial notice — far shorter than the 180 days commercial plans allow. A standard pre-service appeal must be decided within 30 days, and an expedited one within 72 hours.
Do I really have to try physical therapy before an MRI?: Often, but not always. Guidelines commonly expect a documented trial of conservative care for routine back or joint pain. Red-flag findings — progressive neurological deficit, suspected cancer, unexplained weight loss, fever, or significant trauma — are recognized exceptions, so make sure the order and chart note state them clearly if they apply to you.