ICD-9-CM Codes ICD-9-PCS Codes

383.89 - Other disorders of mastoid

GEM Conversion to ICD-10 CM

H70.899

Fs: 10000 – Other mastoiditis and related conditions, unspecified ear

Sibling Codes

383.81

Postauricular fistula

383.89

Other disorders of mastoid

Parent Sibling Codes

383.1

Chronic mastoiditis

383.9

Unspecified mastoiditis