H70.812
BillablePostauricular 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
└H70Mastoiditis and related conditions└H70.8Other mastoiditis and related conditions└H70.81Postauricular fistula└H70.812Postauricular fistula, left ear
└H70.812Postauricular fistula, left ear