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)
Internal Codes
  • H11.011

    Amyloid pterygium of right eye

  • H11.012

    Amyloid pterygium of left eye

  • H11.013

    Amyloid pterygium of eye, bilateral

  • H11.019

    Amyloid pterygium of unspecified eye

  • H11.021

    Central pterygium of right eye

  • H11.022

    Central pterygium of left eye

  • H11.023

    Central pterygium of eye, bilateral

  • H11.029

    Central pterygium of unspecified eye

  • H11.031

    Double pterygium of right eye

  • H11.032

    Double pterygium of left eye

  • H11.033

    Double pterygium of eye, bilateral

  • H11.039

    Double pterygium of unspecified eye

  • H11.041

    Peripheral pterygium, stationary, right eye

  • H11.042

    Peripheral pterygium, stationary, left eye

  • H11.043

    Peripheral pterygium, stationary, bilateral

  • H11.049

    Peripheral pterygium, stationary, unspecified eye

  • H11.051

    Peripheral pterygium, progressive, right eye

  • H11.052

    Peripheral pterygium, progressive, left eye

  • H11.053

    Peripheral pterygium, progressive, bilateral

  • H11.059

    Peripheral pterygium, progressive, unspecified eye

  • H11.061

    Recurrent pterygium of right eye

  • H11.062

    Recurrent pterygium of left eye

  • H11.063

    Recurrent pterygium of eye, bilateral

  • H11.069

    Recurrent pterygium of unspecified eye

  • H11.10

    Unspecified conjunctival degenerations

  • H11.111

    Conjunctival deposits, right eye

  • H11.112

    Conjunctival deposits, left eye

  • H11.113

    Conjunctival deposits, bilateral

  • H11.119

    Conjunctival deposits, unspecified eye

  • H11.121

    Conjunctival concretions, right eye

  • H11.122

    Conjunctival concretions, left eye

  • H11.123

    Conjunctival concretions, bilateral

  • H11.129

    Conjunctival concretions, unspecified eye

  • H11.131

    Conjunctival pigmentations, right eye

  • H11.132

    Conjunctival pigmentations, left eye

  • H11.133

    Conjunctival pigmentations, bilateral

  • H11.139

    Conjunctival pigmentations, unspecified eye

  • H11.141

    Conjunctival xerosis, unspecified, right eye

  • H11.142

    Conjunctival xerosis, unspecified, left eye

  • H11.143

    Conjunctival xerosis, unspecified, bilateral

  • H11.149

    Conjunctival xerosis, unspecified, unspecified eye

  • H11.151

    Pinguecula, right eye

  • H11.152

    Pinguecula, left eye

  • H11.153

    Pinguecula, bilateral

  • H11.159

    Pinguecula, unspecified eye

  • H11.211

    Conjunctival adhesions and strands (localized), right eye

  • H11.212

    Conjunctival adhesions and strands (localized), left eye

  • H11.213

    Conjunctival adhesions and strands (localized), bilateral

  • H11.219

    Conjunctival adhesions and strands (localized), unspecified eye

  • H11.221

    Conjunctival granuloma, right eye

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