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
  • H33.04

    Retinal detachment with retinal dialysis

  • H33.041

    Retinal detachment with retinal dialysis, right eye

  • H33.042

    Retinal detachment with retinal dialysis, left eye

  • H33.043

    Retinal detachment with retinal dialysis, bilateral

  • H33.049

    Retinal detachment with retinal dialysis, unspecified eye

  • H33.05

    Total retinal detachment

  • H33.051

    Total retinal detachment, right eye

  • H33.052

    Total retinal detachment, left eye

  • H33.053

    Total retinal detachment, bilateral

  • H33.059

    Total retinal detachment, unspecified eye

  • H33.1

    Retinoschisis and retinal cysts

  • H33.10

    Unspecified retinoschisis

  • H33.101

    Unspecified retinoschisis, right eye

  • H33.102

    Unspecified retinoschisis, left eye

  • H33.103

    Unspecified retinoschisis, bilateral

  • H33.109

    Unspecified retinoschisis, unspecified eye

  • H33.11

    Cyst of ora serrata

  • H33.111

    Cyst of ora serrata, right eye

  • H33.112

    Cyst of ora serrata, left eye

  • H33.113

    Cyst of ora serrata, bilateral

  • H33.119

    Cyst of ora serrata, unspecified eye

  • H33.12

    Parasitic cyst of retina

  • H33.121

    Parasitic cyst of retina, right eye

  • H33.122

    Parasitic cyst of retina, left eye

  • H33.123

    Parasitic cyst of retina, bilateral

  • H33.129

    Parasitic cyst of retina, unspecified eye

  • H33.19

    Other retinoschisis and retinal cysts

  • H33.191

    Other retinoschisis and retinal cysts, right eye

  • H33.192

    Other retinoschisis and retinal cysts, left eye

  • H33.193

    Other retinoschisis and retinal cysts, bilateral

  • H33.199

    Other retinoschisis and retinal cysts, unspecified eye

  • H33.2

    Serous retinal detachment

  • H33.20

    Serous retinal detachment, unspecified eye

  • H33.21

    Serous retinal detachment, right eye

  • H33.22

    Serous retinal detachment, left eye

  • H33.23

    Serous retinal detachment, bilateral

  • H33.3

    Retinal breaks without detachment

  • H33.30

    Unspecified retinal break

  • H33.301

    Unspecified retinal break, right eye

  • H33.302

    Unspecified retinal break, left eye

  • H33.303

    Unspecified retinal break, bilateral

  • H33.309

    Unspecified retinal break, unspecified eye

  • H33.31

    Horseshoe tear of retina without detachment

  • H33.311

    Horseshoe tear of retina without detachment, right eye

  • H33.312

    Horseshoe tear of retina without detachment, left eye

  • H33.313

    Horseshoe tear of retina without detachment, bilateral

  • H33.319

    Horseshoe tear of retina without detachment, unspecified eye

  • H33.32

    Round hole of retina without detachment

  • H33.321

    Round hole, right eye

  • H33.322

    Round hole, left eye

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