H75.03

Mastoiditis in infectious and parasitic diseases classified elsewhere, bilateral

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from H75.0Mastoiditis in infec/parastc diseases classified elsewhere

Excludes 1

mastoiditis (in): syphilis (A52.77) tuberculosis (A18.03)

Inherited from H75Oth disord of mid ear and mastoid in diseases classd elswhr

Code first

underlying disease

Inherited from chapter 8Diseases of the ear and mastoid process

Excludes 2

certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Note

Use an external cause code following the code for the ear condition, if applicable, to identify the cause of the ear condition

Official Guidelines for H75.03

FY 2026 ›

I.C.8Chapter-specific guidanceChapter 8: Diseases of the Ear and Mastoid Process (H60-H95)