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H40.2

⚠ Non-billable (Header)

Primary angle-closure glaucoma

Diseases of the eye and adnexa (H00-H59)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

direct

Cannot be coded with H40.2

  • • aqueous misdirection (H40.83-)
  • • malignant glaucoma (H40.83-)

❌ Excludes1

inherited from H40

Rules from parent category H40: Glaucoma

  • • absolute glaucoma (H44.51-)
  • • congenital glaucoma (Q15.0)
  • • traumatic glaucoma due to birth injury (P15.3)

Child Codes (5)

H40.20Unspecified primary angle-closure glaucomaH40.21Acute angle-closure glaucomaH40.22Chronic angle-closure glaucomaH40.23Intermittent angle-closure glaucomaH40.24Residual stage of angle-closure glaucoma

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Code Information

CodeH40.2
BillableNo — Header code
ParentH40
CategoryDiseases of the eye and adnexa (H00-H59)
Excludes15 rule(s)
Excludes20 note(s)
Child codes5

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)