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ICD-10-CM chapter 7 · H00-H59

Diseases of the eye and adnexa

About chapter 7

Chapter 7 (H00-H59) contains 40 categories and 2,677 billable codes for FY2027. No codes here changed in the FY2027 update. 0 codes are MCCs and 259 are CCs when reported as secondary diagnoses.

12 code blocks

Chapter notes

Note
  • Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition
Excludes2
  • 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)