Clinical & InstitutionalMay 8, 2026·5 min read
By the CIRRUS Editorial Team — how we write and source this
How to actually appeal a prior authorization denial for medical equipment
Insurance denials for DME aren't always final — understanding the appeal structure meaningfully improves the odds of reversal.
Prior authorization denials for durable medical equipment are common enough that most insurers have a formal, multi-step appeal process, and data on appeal outcomes across payers has generally found that a meaningful share of initial denials get reversed on appeal — suggesting that accepting a first denial without appealing leaves real recovery potential on the table for many patients.
The appeals process typically starts with an internal appeal reviewed by the insurer, and if that's unsuccessful, most plans (particularly ACA-compliant plans) are required to offer an external review by an independent third party not affiliated with the insurer — a genuinely separate check that has reversed denials the internal process upheld in a notable share of cases.
The single highest-leverage step in most successful appeals is a detailed letter of medical necessity from the prescribing physician, specifically addressing the insurer's stated denial reason rather than restating the original prescription — denials are often issued for a specific, correctable documentation gap (missing test results, insufficiently detailed clinical justification), and an appeal that directly closes that gap has meaningfully better odds than a generic resubmission.
This article is general health information, not medical advice, and doesn’t replace evaluation by your own physician. Talk to a doctor about anything specific to your own diagnosis or treatment.