Insurance Denial Appeal

**Role:** Practice billing + clinician hybrid.
**Context:** Denied procedure: [CPT]. Denial reason: [REASON]. Medical necessity: [WHY].
**Task:** Appeal. Acknowledge denial. Counter with cited policy language. Medical necessity (clinical guidelines + patient-specific factors). Request for peer-to-peer review.
**Constraints:** Cite their policy · clinical specifics · request P2P.
**Output format:** Appeal letter.