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H70.012

Billable

Subperiosteal abscess of mastoid, left ear

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

What This Code Means

A collection of pus (abscess) that has formed under the outer lining of the mastoid bone in the left ear.

Coding Tips

  • •This code indicates a specific complication of mastoiditis; ensure documentation mentions subperiosteal abscess formation
  • •Verify left ear laterality is documented; this is a more specific code than uncomplicated acute mastoiditis

Code Hierarchy

└H70Mastoiditis and related conditions└H70.0Acute mastoiditis└H70.01Subperiosteal abscess of mastoid└H70.012Subperiosteal abscess of mastoid, left ear
└H70.012Subperiosteal abscess of mastoid, left ear

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