H71.20
Cholesteatoma of mastoid, unspecified ear
BillableComplete code, valid to report
H71.20 (also written H7120) is a billable ICD-10-CM diagnosis code for cholesteatoma of mastoid, unspecified ear. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 20 codes in category H71 (Cholesteatoma of middle ear). Its coding notes include 10 Excludes2 entries.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Inherited from H71 Cholesteatoma of middle ear
Also from chapter/block level (8 notes)
Inherited from Chapter 8 Diseases of the ear and mastoid process
- 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)
Notes
Also from chapter/block level (1 note)
Inherited from Chapter 8 Diseases of the ear and mastoid process
- Use an external cause code following the code for the ear condition, if applicable, to identify the cause of the ear condition