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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  • H16.139—

    Photokeratitis, unspecified eye

  • H16.141—

    Punctate keratitis, right eye

  • H16.142—

    Punctate keratitis, left eye

  • H16.143—

    Punctate keratitis, bilateral

  • H16.149—

    Punctate keratitis, unspecified eye

  • H16.201—

    Unspecified keratoconjunctivitis, right eye

  • H16.202—

    Unspecified keratoconjunctivitis, left eye

  • H16.203—

    Unspecified keratoconjunctivitis, bilateral

  • H16.209—

    Unspecified keratoconjunctivitis, unspecified eye

  • H16.211—

    Exposure keratoconjunctivitis, right eye

  • H16.212—

    Exposure keratoconjunctivitis, left eye

  • H16.213—

    Exposure keratoconjunctivitis, bilateral

  • H16.219—

    Exposure keratoconjunctivitis, unspecified eye

  • H16.221—

    Keratoconjunctivitis sicca, not specified as Sjögren's, right eye

  • H16.222—

    Keratoconjunctivitis sicca, not specified as Sjögren's, left eye

  • H16.223—

    Keratoconjunctivitis sicca, not specified as Sjögren's, bilateral

  • H16.229—

    Keratoconjunctivitis sicca, not specified as Sjögren's, unspecified eye

  • H16.231—

    Neurotrophic keratoconjunctivitis, right eye

  • H16.232—

    Neurotrophic keratoconjunctivitis, left eye

  • H16.233—

    Neurotrophic keratoconjunctivitis, bilateral

  • H16.239—

    Neurotrophic keratoconjunctivitis, unspecified eye

  • H16.241—

    Ophthalmia nodosa, right eye

  • H16.242—

    Ophthalmia nodosa, left eye

  • H16.243—

    Ophthalmia nodosa, bilateral

  • H16.249—

    Ophthalmia nodosa, unspecified eye

  • H16.251—

    Phlyctenular keratoconjunctivitis, right eye

  • H16.252—

    Phlyctenular keratoconjunctivitis, left eye

  • H16.253—

    Phlyctenular keratoconjunctivitis, bilateral

  • H16.259—

    Phlyctenular keratoconjunctivitis, unspecified eye

  • H16.261—

    Vernal keratoconjunctivitis, with limbar and corneal involvement, right eye

  • H16.262—

    Vernal keratoconjunctivitis, with limbar and corneal involvement, left eye

  • H16.263—

    Vernal keratoconjunctivitis, with limbar and corneal involvement, bilateral

  • H16.269—

    Vernal keratoconjunctivitis, with limbar and corneal involvement, unspecified eye

  • H16.291—

    Other keratoconjunctivitis, right eye

  • H16.292—

    Other keratoconjunctivitis, left eye

  • H16.293—

    Other keratoconjunctivitis, bilateral

  • H16.299—

    Other keratoconjunctivitis, unspecified eye

  • H16.301—

    Unspecified interstitial keratitis, right eye

  • H16.302—

    Unspecified interstitial keratitis, left eye

  • H16.303—

    Unspecified interstitial keratitis, bilateral

  • H16.309—

    Unspecified interstitial keratitis, unspecified eye

  • H16.311—

    Corneal abscess, right eye

  • H16.312—

    Corneal abscess, left eye

  • H16.313—

    Corneal abscess, bilateral

  • H16.319—

    Corneal abscess, unspecified eye

  • H16.321—

    Diffuse interstitial keratitis, right eye

  • H16.322—

    Diffuse interstitial keratitis, left eye

  • H16.323—

    Diffuse interstitial keratitis, bilateral

  • H16.329—

    Diffuse interstitial keratitis, unspecified eye

  • H16.331—

    Sclerosing keratitis, right eye

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