H40.9
ICD-10BillableUnspecified glaucoma
Official ICD-10-CM descriptor (FY2026)
Unspecified glaucoma
H40.9 is valid for submission on a claim — CMS flags it as a billable, specific code.
Related codes in H40
- H40.0Glaucoma suspectcategory
- H40.1Open-angle glaucomacategory
- H40.2Primary angle-closure glaucomacategory
- H40.3Glaucoma secondary to eye traumacategory
- H40.4Glaucoma secondary to eye inflammationcategory
- H40.5Glaucoma secondary to other eye disorderscategory
- H40.6Glaucoma secondary to drugscategory
- H40.8Other glaucomacategory
Where this code sits
- Block
- Glaucoma (H40-H42)
- Parent code
- H40
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.