Skip to content
HCC Buddy home

H70.90

Billable

Unspecified mastoiditis, unspecified ear

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

What This Code Means

Inflammation of the mastoid bone of unspecified type and severity when the affected ear is not documented.

Coding Tips

  • •This is a non-specific code; attempt to obtain more detail about the type and laterality of mastoiditis
  • •Use only when documentation is insufficient to assign a more specific H70 code

Code Hierarchy

└H70Mastoiditis and related conditions└H70.9Unspecified mastoiditis└H70.90Unspecified mastoiditis, unspecified ear
└H70.90Unspecified mastoiditis, unspecified ear

Open H70.90 in the Interactive Encoder

See full code details, AI coding tips, HCC mappings, and related codes in our interactive encoder. Start your 14-day Pro trial — no credit card required.

Open in EncoderStart 14-Day Pro Trial