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H70.812

Billable

Postauricular fistula, left ear

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

What This Code Means

An abnormal tunnel or opening in the skin behind the left ear, usually developing as a complication of chronic mastoid disease or surgical intervention.

Coding Tips

  • Confirm laterality is specifically documented as left; do not assume based on patient history alone
  • Note any associated drainage, infection, or symptoms that may guide treatment decisions

Code Hierarchy

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