Coding and coverage · ICD-10-CM

H90

H90.A Conductive and sensorineural hearing loss with restricted hearing on the contralateral side

Not billable (header)Chapter 8

Report one of the more specific codes below.

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Codes under this one

  • H90.A1 Conductive hearing loss, unilateral, with restricted hearing on the contralateral sideHeader
  • H90.A2 Sensorineural hearing loss, unilateral, with restricted hearing on the contralateral sideHeader
  • H90.A3 Mixed conductive and sensorineural hearing loss, unilateral with restricted hearing on the contralateral sideHeader

Instructional notes

Chapter 8

Excludes2Not included here: the patient may have both; report both when both are present.
  • 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
  • Use an external cause code following the code for the ear condition, if applicable, to identify the cause of the ear condition

H90

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • deaf nonspeaking NEC (H91.3)
  • deafness NOS (H91.9-)
  • hearing loss NOS (H91.9-)
  • noise-induced hearing loss (H83.3-)
  • ototoxic hearing loss (H91.0-)
  • sudden (idiopathic) hearing loss (H91.2-)

Chapter 8: Diseases of the ear and mastoid process · H90-H94 Other disorders of ear (H90-H94)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.