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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  • H49—

    Paralytic strabismus

  • H49.0—

    Third [oculomotor] nerve palsy

  • H49.00—

    Third [oculomotor] nerve palsy, unspecified eye

  • H49.01—

    Third [oculomotor] nerve palsy, right eye

  • H49.02—

    Third [oculomotor] nerve palsy, left eye

  • H49.03—

    Third [oculomotor] nerve palsy, bilateral

  • H49.1—

    Fourth [trochlear] nerve palsy

  • H49.10—

    Fourth [trochlear] nerve palsy, unspecified eye

  • H49.11—

    Fourth [trochlear] nerve palsy, right eye

  • H49.12—

    Fourth [trochlear] nerve palsy, left eye

  • H49.13—

    Fourth [trochlear] nerve palsy, bilateral

  • H49.2—

    Sixth [abducent] nerve palsy

  • H49.20—

    Sixth [abducent] nerve palsy, unspecified eye

  • H49.21—

    Sixth [abducent] nerve palsy, right eye

  • H49.22—

    Sixth [abducent] nerve palsy, left eye

  • H49.23—

    Sixth [abducent] nerve palsy, bilateral

  • H49.3—

    Total (external) ophthalmoplegia

  • H49.30—

    Total (external) ophthalmoplegia, unspecified eye

  • H49.31—

    Total (external) ophthalmoplegia, right eye

  • H49.32—

    Total (external) ophthalmoplegia, left eye

  • H49.33—

    Total (external) ophthalmoplegia, bilateral

  • H49.4—

    Progressive external ophthalmoplegia

  • H49.40—

    Progressive external ophthalmoplegia, unspecified eye

  • H49.41—

    Progressive external ophthalmoplegia, right eye

  • H49.42—

    Progressive external ophthalmoplegia, left eye

  • H49.43—

    Progressive external ophthalmoplegia, bilateral

  • H49.8—

    Other paralytic strabismus

  • H49.81—

    Kearns-Sayre syndrome

  • H49.811—

    Kearns-Sayre syndrome, right eye

  • H49.812—

    Kearns-Sayre syndrome, left eye

  • H49.813—

    Kearns-Sayre syndrome, bilateral

  • H49.819—

    Kearns-Sayre syndrome, unspecified eye

  • H49.88—

    Other paralytic strabismus

  • H49.881—

    Other paralytic strabismus, right eye

  • H49.882—

    Other paralytic strabismus, left eye

  • H49.883—

    Other paralytic strabismus, bilateral

  • H49.889—

    Other paralytic strabismus, unspecified eye

  • H49.9—

    Unspecified paralytic strabismus

  • H50—

    Other strabismus

  • H50.0—

    Esotropia

  • H50.00—

    Unspecified esotropia

  • H50.01—

    Monocular esotropia

  • H50.011—

    Monocular esotropia, right eye

  • H50.012—

    Monocular esotropia, left eye

  • H50.02—

    Monocular esotropia with A pattern

  • H50.021—

    Monocular esotropia with A pattern, right eye

  • H50.022—

    Monocular esotropia with A pattern, left eye

  • H50.03—

    Monocular esotropia with V pattern

  • H50.031—

    Monocular esotropia with V pattern, right eye

  • H50.032—

    Monocular esotropia with V pattern, left eye

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