All ICD10 Codes
Chapter 7

H00–H59: Diseases of the Eye and Adnexa

Diseases of the Eye and Adnexa diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • 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)
  • diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury (trauma) of eye and orbit (S05.-)
  • 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)
  • syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)
All CodesBillable Only
Internal Codes
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  • H18.553—

    Macular corneal dystrophy, bilateral

  • H18.559—

    Macular corneal dystrophy, unspecified eye

  • H18.591—

    Other hereditary corneal dystrophies, right eye

  • H18.592—

    Other hereditary corneal dystrophies, left eye

  • H18.593—

    Other hereditary corneal dystrophies, bilateral

  • H18.599—

    Other hereditary corneal dystrophies, unspecified eye

  • H18.601—

    Keratoconus, unspecified, right eye

  • H18.602—

    Keratoconus, unspecified, left eye

  • H18.603—

    Keratoconus, unspecified, bilateral

  • H18.609—

    Keratoconus, unspecified, unspecified eye

  • H18.611—

    Keratoconus, stable, right eye

  • H18.612—

    Keratoconus, stable, left eye

  • H18.613—

    Keratoconus, stable, bilateral

  • H18.619—

    Keratoconus, stable, unspecified eye

  • H18.621—

    Keratoconus, unstable, right eye

  • H18.622—

    Keratoconus, unstable, left eye

  • H18.623—

    Keratoconus, unstable, bilateral

  • H18.629—

    Keratoconus, unstable, unspecified eye

  • H18.70—

    Unspecified corneal deformity

  • H18.711—

    Corneal ectasia, right eye

  • H18.712—

    Corneal ectasia, left eye

  • H18.713—

    Corneal ectasia, bilateral

  • H18.719—

    Corneal ectasia, unspecified eye

  • H18.721—

    Corneal staphyloma, right eye

  • H18.722—

    Corneal staphyloma, left eye

  • H18.723—

    Corneal staphyloma, bilateral

  • H18.729—

    Corneal staphyloma, unspecified eye

  • H18.731—

    Descemetocele, right eye

  • H18.732—

    Descemetocele, left eye

  • H18.733—

    Descemetocele, bilateral

  • H18.739—

    Descemetocele, unspecified eye

  • H18.791—

    Other corneal deformities, right eye

  • H18.792—

    Other corneal deformities, left eye

  • H18.793—

    Other corneal deformities, bilateral

  • H18.799—

    Other corneal deformities, unspecified eye

  • H18.811—

    Anesthesia and hypoesthesia of cornea, right eye

  • H18.812—

    Anesthesia and hypoesthesia of cornea, left eye

  • H18.813—

    Anesthesia and hypoesthesia of cornea, bilateral

  • H18.819—

    Anesthesia and hypoesthesia of cornea, unspecified eye

  • H18.821—

    Corneal disorder due to contact lens, right eye

  • H18.822—

    Corneal disorder due to contact lens, left eye

  • H18.823—

    Corneal disorder due to contact lens, bilateral

  • H18.829—

    Corneal disorder due to contact lens, unspecified eye

  • H18.831—

    Recurrent erosion of cornea, right eye

  • H18.832—

    Recurrent erosion of cornea, left eye

  • H18.833—

    Recurrent erosion of cornea, bilateral

  • H18.839—

    Recurrent erosion of cornea, unspecified eye

  • H18.891—

    Other specified disorders of cornea, right eye

  • H18.892—

    Other specified disorders of cornea, left eye

  • H18.893—

    Other specified disorders of cornea, bilateral

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