H40.231 Intermittent angle-closure glaucoma, right eye
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The ICD-10-CM code for Intermittent angle-closure glaucoma, right eye is H40.231 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- H40-H42: Glaucoma (H40-H42)
- Category H40
- 129 codes (100 billable)
- FY2026 Status
- Stable since FY2024
U.S. Hospital Utilization
H40.231 appeared in too few sampled U.S. inpatient stays in 2021 to report a national estimate (AHRQ suppresses counts of 10 or fewer) — a rare inpatient diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
Glaucoma (TOC entry)a. Glaucoma .............................................................................................................................. 48
Assigning glaucoma codes (use as many H40 codes as needed)Assign as many codes from category H40, Glaucoma, as needed to identify the type of glaucoma, the affected eye, and the glaucoma stage.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026
References
Cite This Page
Reference H40.231 with the canonical source and edition:
H40.231 — Intermittent angle-closure glaucoma, right eye. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/H40.231
Canonical URL: https://icd10codingpro.com/codes/H40.231