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ICD-10-CM 2027

ICD-10 code for chronic petrositis

H70.22

Chronic petrositis

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Petrositis › chronic”. Page updated September 29, 2026.

About coding chronic petrositis

The ICD-10-CM code for chronic petrositis is H70.22 (Chronic petrositis).

Within H70.2 (petrositis), H70.22 is specifically for chronic petrositis. Related codes cover unspecified petrositis (H70.20) and acute petrositis (H70.21).

To report this condition, pick the subcode that matches the documentation: H70.221 (right ear), H70.222 (left ear), H70.223 (bilateral) and H70.229 (unspecified ear).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Common questions about chronic petrositis ICD-10 codes

What is the ICD-10 code for chronic petrositis?

H70.22 — Chronic petrositis (a header code; report a more specific subcode).

Is H70.22 billable?

No. H70.22 is a header code. Report one of its more specific subcodes instead.