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R51.9

Billable

Headache, unspecified

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A headache where the specific type, location, or cause is not documented or identified.

Coding Tips

  • •This is a non-specific code; attempt to obtain more detailed information about headache characteristics from the provider
  • •Review if more specific headache codes (R51.0-R51.8) or migraine codes (G43) are more appropriate

Code Hierarchy

└R51Headache└R51.9Headache, unspecified
└R51.9Headache, unspecified

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