ICD-10-CM diagnosis code
H40.1230 Low-tension glaucoma, bilateral, stage unspecified
- Billable
- Yes, a complete code (FY2026)
- Category
- H40 Glaucoma
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Other codes in H40
252 complete codes in this category.
- H40.1214Low-tension glaucoma, right eye, indeterminate stage
- H40.1220Low-tension glaucoma, left eye, stage unspecified
- H40.1221Low-tension glaucoma, left eye, mild stage
- H40.1222Low-tension glaucoma, left eye, moderate stage
- H40.1223Low-tension glaucoma, left eye, severe stage
- H40.1224Low-tension glaucoma, left eye, indeterminate stage
- H40.1230Low-tension glaucoma, bilateral, stage unspecified
- H40.1231Low-tension glaucoma, bilateral, mild stage
- H40.1232Low-tension glaucoma, bilateral, moderate stage
- H40.1233Low-tension glaucoma, bilateral, severe stage
- H40.1234Low-tension glaucoma, bilateral, indeterminate stage
- H40.1290Low-tension glaucoma, unspecified eye, stage unspecified
Documentation tips
- Make sure the note supports every element of the title, “Low-tension glaucoma, bilateral, stage unspecified”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to H40.
The international WHO ICD-10 also has H40, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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