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H71.21

Billable

Cholesteatoma of mastoid, right ear

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

What This Code Means

An abnormal skin growth in the mastoid bone on the right side, which is located behind the right ear and can cause bone erosion if untreated.

Coding Tips

  • •Verify right ear/mastoid involvement is documented before coding
  • •Mastoid involvement often requires more aggressive surgical intervention than tympanum-only disease

Code Hierarchy

└H71Cholesteatoma of middle ear└H71.2Cholesteatoma of mastoid└H71.21Cholesteatoma of mastoid, right ear
└H71.21Cholesteatoma of mastoid, right ear

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