All ICD10 Codes
H42Billable

Glaucoma in diseases classified elsewhere

Diseases of the Eye and Adnexa·Glaucoma (H40-H42)·category·FY 2026

CH7 Parent 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)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • glaucoma (in) onchocerciasis (B73.02)
  • glaucoma (in) syphilis (A52.71)
  • glaucoma (in) tuberculous (A18.59)
  • neovascular secondary angle closure glaucoma (H40.84-)
Code First

Clinical Hierarchy

BillableHas subcodes
CH7Diseases of the eye and adnexa (H00-H59)
H40-H42Glaucoma (H40-H42)
H42Glaucoma in diseases classified elsewhereBillable

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 124
Other Disorders of the Eye with MCC or Thrombolytic Agent
DRG 125
Other Disorders of the Eye without MCC