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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  • H16.42—

    Pannus (corneal)

  • H16.421—

    Pannus (corneal), right eye

  • H16.422—

    Pannus (corneal), left eye

  • H16.423—

    Pannus (corneal), bilateral

  • H16.429—

    Pannus (corneal), unspecified eye

  • H16.43—

    Localized vascularization of cornea

  • H16.431—

    Localized vascularization of cornea, right eye

  • H16.432—

    Localized vascularization of cornea, left eye

  • H16.433—

    Localized vascularization of cornea, bilateral

  • H16.439—

    Localized vascularization of cornea, unspecified eye

  • H16.44—

    Deep vascularization of cornea

  • H16.441—

    Deep vascularization of cornea, right eye

  • H16.442—

    Deep vascularization of cornea, left eye

  • H16.443—

    Deep vascularization of cornea, bilateral

  • H16.449—

    Deep vascularization of cornea, unspecified eye

  • H16.8—

    Other keratitis

  • H16.9—

    Unspecified keratitis

  • H17—

    Corneal scars and opacities

  • H17.0—

    Adherent leukoma

  • H17.00—

    Adherent leukoma, unspecified eye

  • H17.01—

    Adherent leukoma, right eye

  • H17.02—

    Adherent leukoma, left eye

  • H17.03—

    Adherent leukoma, bilateral

  • H17.1—

    Central corneal opacity

  • H17.10—

    Central corneal opacity, unspecified eye

  • H17.11—

    Central corneal opacity, right eye

  • H17.12—

    Central corneal opacity, left eye

  • H17.13—

    Central corneal opacity, bilateral

  • H17.8—

    Other corneal scars and opacities

  • H17.81—

    Minor opacity of cornea

  • H17.811—

    Minor opacity of cornea, right eye

  • H17.812—

    Minor opacity of cornea, left eye

  • H17.813—

    Minor opacity of cornea, bilateral

  • H17.819—

    Minor opacity of cornea, unspecified eye

  • H17.82—

    Peripheral opacity of cornea

  • H17.821—

    Peripheral opacity of cornea, right eye

  • H17.822—

    Peripheral opacity of cornea, left eye

  • H17.823—

    Peripheral opacity of cornea, bilateral

  • H17.829—

    Peripheral opacity of cornea, unspecified eye

  • H17.89—

    Other corneal scars and opacities

  • H17.9—

    Unspecified corneal scar and opacity

  • H18—

    Other disorders of cornea

  • H18.0—

    Corneal pigmentations and deposits

  • H18.00—

    Unspecified corneal deposit

  • H18.001—

    Unspecified corneal deposit, right eye

  • H18.002—

    Unspecified corneal deposit, left eye

  • H18.003—

    Unspecified corneal deposit, bilateral

  • H18.009—

    Unspecified corneal deposit, unspecified eye

  • H18.01—

    Anterior corneal pigmentations

  • H18.011—

    Anterior corneal pigmentations, right eye

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