Most denials are never appealed at all — and appeals succeed far more often than people expect, because many denials are procedural, not medical. Five minutes here produces a properly structured internal appeal letter. Everything stays on your device.
Send it certified mail (keep the receipt) or via your insurer's member portal, and attach: the denial letter, any doctor's letter of medical necessity, and relevant records. Deadlines are real — most plans allow 180 days for an internal appeal, but check your denial letter's stated deadline. If the internal appeal fails, you typically have the right to an independent external review. This tool is education, not legal advice; for complex or urgent cases, your state's insurance department and your HR team are allies.