Part of: Understand your denial

Checklist

What your denial letter should contain

A list of what the federal rules say a denial notice must contain, so you can tick what your letter has and ask for what it lacks.

0 of 18 ticked. Ticks are your own record: they do not file or confirm anything, and they are kept only in this browser tab.

What was decided and why

Tick what your letter has. Some items apply only to plans that are not grandfathered (plans in place since before 23 March 2010 that have not made certain changes). A missing item is worth asking about in writing and noting in your appeal.

What the plan relied on
How you can challenge it
Extra items in some letters

Sources

Official and primary sources used on this page. Checked 2026-11-12.

  1. 29 CFR 2560.503-1, claims procedure — Electronic Code of Federal Regulations
  2. 29 CFR 2590.715-2719, internal claims and appeals and external review — Electronic Code of Federal Regulations
  3. 45 CFR 147.136, internal claims and appeals and external review — Electronic Code of Federal Regulations
  4. 29 CFR 2590.712, parity in mental health and substance use disorder benefits — Electronic Code of Federal Regulations
  5. 29 U.S.C. 1133, claims procedure (ERISA section 503) — Government Publishing Office (govinfo.gov)

Part of Understand your denial.

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