ICD-11 classes
10 Diseases of the ear or mastoid process
Diseases of middle ear or mastoid
AB11 — Mastoiditis or related conditions
AB11.1 — Chronic mastoiditis
ICD-11 AB11.1 — Chronic mastoiditis
Persistent or recurrent inflammation of the space in the mastoid bone. It is often a complication of otitis media.
The diagnosis includes nothing.
The diagnosis excludes nothing.
It has no clarifying diagnoses.