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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  • H50.54—

    Cyclophoria

  • H50.55—

    Alternating heterophoria

  • H50.6—

    Mechanical strabismus

  • H50.60—

    Mechanical strabismus, unspecified

  • H50.61—

    Brown's sheath syndrome

  • H50.611—

    Brown's sheath syndrome, right eye

  • H50.612—

    Brown's sheath syndrome, left eye

  • H50.62—

    Inferior oblique muscle entrapment

  • H50.621—

    Inferior oblique muscle entrapment, right eye

  • H50.622—

    Inferior oblique muscle entrapment, left eye

  • H50.629—

    Inferior oblique muscle entrapment, unspecified eye

  • H50.63—

    Inferior rectus muscle entrapment

  • H50.631—

    Inferior rectus muscle entrapment, right eye

  • H50.632—

    Inferior rectus muscle entrapment, left eye

  • H50.639—

    Inferior rectus muscle entrapment, unspecified eye

  • H50.64—

    Lateral rectus muscle entrapment

  • H50.641—

    Lateral rectus muscle entrapment, right eye

  • H50.642—

    Lateral rectus muscle entrapment, left eye

  • H50.649—

    Lateral rectus muscle entrapment, unspecified eye

  • H50.65—

    Medial rectus muscle entrapment

  • H50.651—

    Medial rectus muscle entrapment, right eye

  • H50.652—

    Medial rectus muscle entrapment, left eye

  • H50.659—

    Medial rectus muscle entrapment, unspecified eye

  • H50.66—

    Superior oblique muscle entrapment

  • H50.661—

    Superior oblique muscle entrapment, right eye

  • H50.662—

    Superior oblique muscle entrapment, left eye

  • H50.669—

    Superior oblique muscle entrapment, unspecified eye

  • H50.67—

    Superior rectus muscle entrapment

  • H50.671—

    Superior rectus muscle entrapment, right eye

  • H50.672—

    Superior rectus muscle entrapment, left eye

  • H50.679—

    Superior rectus muscle entrapment, unspecified eye

  • H50.68—

    Extraocular muscle entrapment, unspecified

  • H50.681—

    Extraocular muscle entrapment, unspecified, right eye

  • H50.682—

    Extraocular muscle entrapment, unspecified, left eye

  • H50.689—

    Extraocular muscle entrapment, unspecified, unspecified eye

  • H50.69—

    Other mechanical strabismus

  • H50.8—

    Other specified strabismus

  • H50.81—

    Duane's syndrome

  • H50.811—

    Duane's syndrome, right eye

  • H50.812—

    Duane's syndrome, left eye

  • H50.89—

    Other specified strabismus

  • H50.9—

    Unspecified strabismus

  • H51—

    Other disorders of binocular movement

  • H51.0—

    Palsy (spasm) of conjugate gaze

  • H51.1—

    Convergence insufficiency and excess

  • H51.11—

    Convergence insufficiency

  • H51.12—

    Convergence excess

  • H51.2—

    Internuclear ophthalmoplegia

  • H51.20—

    Internuclear ophthalmoplegia, unspecified eye

  • H51.21—

    Internuclear ophthalmoplegia, right eye

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