H70.221
BillableChronic petrositis, right ear
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
Long-standing infection and inflammation of the petrous bone on the right side, representing a chronic form of bone infection that persists over time.
Coding Tips
- •Confirm documentation explicitly states 'chronic' to distinguish from acute petrositis, which has different treatment implications
- •Chronic petrositis may indicate recurrent or inadequately treated acute infection
Code Hierarchy
└H70Mastoiditis and related conditions└H70.2Petrositis└H70.22Chronic petrositis└H70.221Chronic petrositis, right ear
└H70.221Chronic petrositis, right ear