H80.90

Unspecified otosclerosis, unspecified ear

FY2027Chapter 8: Diseases of the ear and mastoid process/H80–H83 Diseases of inner ear

BillableComplete code, valid to report

H80.90 (also written H8090) is a billable ICD-10-CM diagnosis code for unspecified otosclerosis, unspecified ear. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 20 codes in category H80 (Otosclerosis). Its coding notes include 8 Excludes2 entries.

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

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)

Includes

Further defines or gives examples of the content of the category.

Inherited from H80 Otosclerosis
  • Otospongiosis

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