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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  • H05.33—

    Deformity of orbit due to trauma or surgery

  • H05.331—

    Deformity of right orbit due to trauma or surgery

  • H05.332—

    Deformity of left orbit due to trauma or surgery

  • H05.333—

    Deformity of bilateral orbits due to trauma or surgery

  • H05.339—

    Deformity of unspecified orbit due to trauma or surgery

  • H05.34—

    Enlargement of orbit

  • H05.341—

    Enlargement of right orbit

  • H05.342—

    Enlargement of left orbit

  • H05.343—

    Enlargement of bilateral orbits

  • H05.349—

    Enlargement of unspecified orbit

  • H05.35—

    Exostosis of orbit

  • H05.351—

    Exostosis of right orbit

  • H05.352—

    Exostosis of left orbit

  • H05.353—

    Exostosis of bilateral orbits

  • H05.359—

    Exostosis of unspecified orbit

  • H05.4—

    Enophthalmos

  • H05.40—

    Unspecified enophthalmos

  • H05.401—

    Unspecified enophthalmos, right eye

  • H05.402—

    Unspecified enophthalmos, left eye

  • H05.403—

    Unspecified enophthalmos, bilateral

  • H05.409—

    Unspecified enophthalmos, unspecified eye

  • H05.41—

    Enophthalmos due to atrophy of orbital tissue

  • H05.411—

    Enophthalmos due to atrophy of orbital tissue, right eye

  • H05.412—

    Enophthalmos due to atrophy of orbital tissue, left eye

  • H05.413—

    Enophthalmos due to atrophy of orbital tissue, bilateral

  • H05.419—

    Enophthalmos due to atrophy of orbital tissue, unspecified eye

  • H05.42—

    Enophthalmos due to trauma or surgery

  • H05.421—

    Enophthalmos due to trauma or surgery, right eye

  • H05.422—

    Enophthalmos due to trauma or surgery, left eye

  • H05.423—

    Enophthalmos due to trauma or surgery, bilateral

  • H05.429—

    Enophthalmos due to trauma or surgery, unspecified eye

  • H05.5—

    Retained (old) foreign body following penetrating wound of orbit

  • H05.50—

    Retained (old) foreign body following penetrating wound of unspecified orbit

  • H05.51—

    Retained (old) foreign body following penetrating wound of right orbit

  • H05.52—

    Retained (old) foreign body following penetrating wound of left orbit

  • H05.53—

    Retained (old) foreign body following penetrating wound of bilateral orbits

  • H05.8—

    Other disorders of orbit

  • H05.81—

    Cyst of orbit

  • H05.811—

    Cyst of right orbit

  • H05.812—

    Cyst of left orbit

  • H05.813—

    Cyst of bilateral orbits

  • H05.819—

    Cyst of unspecified orbit

  • H05.82—

    Myopathy of extraocular muscles

  • H05.821—

    Myopathy of extraocular muscles, right orbit

  • H05.822—

    Myopathy of extraocular muscles, left orbit

  • H05.823—

    Myopathy of extraocular muscles, bilateral

  • H05.829—

    Myopathy of extraocular muscles, unspecified orbit

  • H05.83—

    Thyroid orbitopathy

  • H05.831—

    Thyroid orbitopathy, right orbit

  • H05.832—

    Thyroid orbitopathy, left orbit

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