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
  • H34.231

    Retinal artery branch occlusion, right eye

  • H34.232

    Retinal artery branch occlusion, left eye

  • H34.233

    Retinal artery branch occlusion, bilateral

  • H34.239

    Retinal artery branch occlusion, unspecified eye

  • H34.811

    Central retinal vein occlusion, right eye

  • H34.8110

    Central retinal vein occlusion, right eye, with macular edema

  • H34.8111

    Central retinal vein occlusion, right eye, with retinal neovascularization

  • H34.8112

    Central retinal vein occlusion, right eye, stable

  • H34.812

    Central retinal vein occlusion, left eye

  • H34.8120

    Central retinal vein occlusion, left eye, with macular edema

  • H34.8121

    Central retinal vein occlusion, left eye, with retinal neovascularization

  • H34.8122

    Central retinal vein occlusion, left eye, stable

  • H34.813

    Central retinal vein occlusion, bilateral

  • H34.8130

    Central retinal vein occlusion, bilateral, with macular edema

  • H34.8131

    Central retinal vein occlusion, bilateral, with retinal neovascularization

  • H34.8132

    Central retinal vein occlusion, bilateral, stable

  • H34.819

    Central retinal vein occlusion, unspecified eye

  • H34.8190

    Central retinal vein occlusion, unspecified eye, with macular edema

  • H34.8191

    Central retinal vein occlusion, unspecified eye, with retinal neovascularization

  • H34.8192

    Central retinal vein occlusion, unspecified eye, stable

  • H34.821

    Venous engorgement, right eye

  • H34.822

    Venous engorgement, left eye

  • H34.823

    Venous engorgement, bilateral

  • H34.829

    Venous engorgement, unspecified eye

  • H34.831

    Tributary (branch) retinal vein occlusion, right eye

  • H34.8310

    Tributary (branch) retinal vein occlusion, right eye, with macular edema

  • H34.8311

    Tributary (branch) retinal vein occlusion, right eye, with retinal neovascularization

  • H34.8312

    Tributary (branch) retinal vein occlusion, right eye, stable

  • H34.832

    Tributary (branch) retinal vein occlusion, left eye

  • H34.8320

    Tributary (branch) retinal vein occlusion, left eye, with macular edema

  • H34.8321

    Tributary (branch) retinal vein occlusion, left eye, with retinal neovascularization

  • H34.8322

    Tributary (branch) retinal vein occlusion, left eye, stable

  • H34.833

    Tributary (branch) retinal vein occlusion, bilateral

  • H34.8330

    Tributary (branch) retinal vein occlusion, bilateral, with macular edema

  • H34.8331

    Tributary (branch) retinal vein occlusion, bilateral, with retinal neovascularization

  • H34.8332

    Tributary (branch) retinal vein occlusion, bilateral, stable

  • H34.839

    Tributary (branch) retinal vein occlusion, unspecified eye

  • H34.8390

    Tributary (branch) retinal vein occlusion, unspecified eye, with macular edema

  • H34.8391

    Tributary (branch) retinal vein occlusion, unspecified eye, with retinal neovascularization

  • H34.8392

    Tributary (branch) retinal vein occlusion, unspecified eye, stable

  • H34.9

    Unspecified retinal vascular occlusion

  • H35.00

    Unspecified background retinopathy

  • H35.011

    Changes in retinal vascular appearance, right eye

  • H35.012

    Changes in retinal vascular appearance, left eye

  • H35.013

    Changes in retinal vascular appearance, bilateral

  • H35.019

    Changes in retinal vascular appearance, unspecified eye

  • H35.021

    Exudative retinopathy, right eye

  • H35.022

    Exudative retinopathy, left eye

  • H35.023

    Exudative retinopathy, bilateral

  • H35.029

    Exudative retinopathy, unspecified eye

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