H75.0** Asterisk (manifestation)
Mastoiditis in infectious and parasitic diseases classified elsewhere
Coding rules (TT06)
- ●Cannot be used as primary diagnosis
Dual coding (†/*)
This is an asterisk (*) manifestation code — usually paired with a dagger (†) etiology code.
Paired codesA18.0†Tuberculosis of bones and joints
→ Full dagger (†) ↔ asterisk (*) mapping tableCoding guidance (WHO 2019)
Tuberculous mastoiditis (A18.0†)