Osseous obstruction of Eustachian tube
H69.0 Patulous Eustachian tube
Patulous Eustachian tube
H70.0 Acute mastoiditis Notes: Abscess of mastoid ; Empyema of mastoid
Acute mastoiditis Notes: Abscess of mastoid ; Empyema of mastoid
H70.1 Chronic mastoiditis Notes: Caries of mastoid ; Fistula of mastoid ; tuberculous mastoiditis (A18.03)
Chronic mastoiditis Notes: Caries of mastoid ; Fistula of mastoid ; tuberculous mastoiditis (A18.03)
H70.22 Chronic petrositis
Chronic petrositis
H70.9 Unspecified mastoiditis
Unspecified mastoiditis
H71.2 Cholesteatoma of mastoid
Cholesteatoma of mastoid
H72.0 Central perforation of tympanic membrane
Central perforation of tympanic membrane

