RARCN386ReferenceCurrentVerified Aug 15, 2026RARC N386
AR Guide Workflow
Medical Necessity
The payer determined the service was not medically necessary or reasonable according to its policy. These denials are documentation-driven.
AR Guide explanation
What it means
The decision is based on a National Coverage Determination (NCD).
AR Guide knowledge
Common denial category
Medical Necessity — The payer determined the service was not medically necessary or reasonable according to its policy. These denials are documentation-driven.
AR Guide knowledge
Common usage
- Medicare claims denied per an NCD
- Accompanies medical necessity denials
About this guidance: Note
AR Guide knowledge is general reference content written by our team — it is not payer-specific policy and never replaces the payer’s documentation or your contract. Always confirm specifics with the payer.