A non-affirmation on a prior authorization request under the CMS WISeR model is not a denied claim. It is a preliminary finding that a skin substitute application likely will not meet Medicare's coverage, coding, and payment rules as submitted, and the request can be resubmitted an unlimited number of times, with a peer-to-peer clinical review available on resubmission, before the practice decides whether to submit the claim at all. The WISeR Model: A New Era of Prior Authorization and Audit Risks for Wound Care explains the model's two tracks. This article covers what to do after a non-affirmed request, or after a claim applying the product without prior authorization lands in prepayment review instead.
Non-Affirmation Is Not a Claim Denial
CMS runs WISeR prior authorization and pre-payment review in six states: New Jersey, Ohio, Oklahoma, Texas, Arizona, and Washington, each paired with a WISeR Participant and that state's Medicare Administrative Contractor. CMS's operational guide excludes skin substitutes from prior authorization and pre-payment review in Arizona and Washington because the local coverage policy there has been withdrawn, so skin substitute requests go through WISeR only in New Jersey, Ohio, Oklahoma, and Texas. A determination typically issues within 3 calendar days of a request, or 2 calendar days for a confirmed expedited request. A non-affirmation means the clinicians found the documentation did not establish that coverage, coding, and payment rules were met, not that a claim has been adjudicated. CMS's operational guide states that a non-affirmed request is not an initial determination on a claim and is therefore not independently appealable. Appeal rights attach only once a claim is submitted and denied.
Reading the Stated Reason Against the Coverage Policy
A non-affirmation notice must identify the missing or noncompliant information behind the decision. For skin substitute applications, that missing or noncompliant information traces to the documentation requirements in two coverage policies: Local Coverage Determination L35041 (bioengineered skin substitutes for lower-extremity chronic non-healing wounds) and L36690 (wound application of cellular and tissue-based products, lower extremities). The requirements point to gaps such as an incomplete wound description, missing evidence of adequate circulation, an undocumented smoking history, more than 10 applications within 12 weeks, or more than one product used on the same wound. Matching the cited code against the actual local coverage determination tells the practice which element of the record is missing.
What a Resubmission Can Add
A resubmission corrects the same request rather than starting a new one, and it must include the original non-affirmed Unique Tracking Number plus the documentation identified in the notice. CMS permits unlimited resubmissions. Where the reason concerns the wound record itself (measurements, staging, infection status, circulation findings), the fix is a fuller clinical note tied to the date of service. Where the reason concerns application frequency or product count, a dated signature log documenting who applied the product and when supports that resubmission. Resubmitting the same documentation without addressing the cited reason draws the same non-affirmation.
Requesting a Peer-to-Peer Discussion
A resubmission carries the right to request a peer-to-peer clinical review. CMS's guide describes connecting the provider with a clinician with clinical background relevant to the condition under review, with the discussion built on the same local coverage determination and documentation requirements that produced the non-affirmation. It is a chance to walk a reviewer through documentation that exists in the chart but was not clearly presented, not a forum for new facts outside the record on the date of service.
When a Non-Affirmed Request Becomes a Denied Claim
Two paths lead to an actual, appealable denial. Submitting a claim with a non-affirmed authorization on file gets that claim denied, which itself becomes the determination that makes appeal rights available. A practice that applied the product without requesting authorization instead faces prepayment medical review: an additional documentation request (ADR), with 45 days to respond and a decision within 3 days of receipt. Wound Care Prepayment Review: Documentation That Releases Claims covers that documentation package. Either path ends the same way: once the claim is denied, the existing Medicare claims appeal process applies, beginning with a redetermination request. Skin Substitute Audits: Product Selection, Size, and Frequency Findings covers the broader exposure once denials are extrapolated across a lookback period.
A non-affirmed prior authorization decision is a preliminary finding, not an initial determination on a claim, and carries no appeal rights on its own. Those rights attach only once the claim is submitted and the Medicare Administrative Contractor denies it.
Why Early Legal Counsel Is Critical
It is critical that wound care providers promptly retain experienced healthcare defense counsel upon receiving a non-affirmed WISeR decision, an additional documentation request, or notice of prepayment review. Early legal intervention can protect the provider's rights, shape the resubmission or peer-to-peer record before a claim is submitted, avoid inadvertent admissions during the documentation exchange, and allow counsel to communicate with the contractor on the provider's behalf. Delaying representation can turn a correctable documentation gap into a denied claim before counsel is engaged.
How Health Law Alliance Can Help
Health Law Alliance's attorneys have overseen 2,000+ audits and handled 5,000+ matters, with 25+ years of experience. If your practice received a non-affirmed WISeR decision or a prepayment review request tied to a skin substitute claim, contact Health Law Alliance's wound care audit defense attorneys for a free, confidential consultation before the claim is submitted.
