H40.842: Neovascular secondary angle closure glaucoma, left eye

New code · FY2026

Billable: use this code on claims.

• New code, effective October 1, 2025 (FY2026).

Code breakdown

Coding notes

Code also (from H40.84)

• the underlying condition such as:
• central retinal vein occlusion (H34.81)
• diabetes mellitus (E08.39, E09.39, E10.39, E11.39, E13.39)
• retinal ischemia (H35.82)

Excludes1 (from H40)

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

Medicare coverage

H40.842 is listed as a covered diagnosis in 25 Medicare billing and coding articles:

• A52370 Billing and Coding: Bevacizumab and biosimilars
• A53008 Billing and Coding: Intraocular Bevacizumab
• A53060 Billing and Coding: Ophthalmology: Extended Ophthalmoscopy and Fundus Photography
• A55639 Billing and Coding: Chemotherapy Agents for Non-Oncologic Conditions
• A56453 Billing and Coding: Cataract Extraction
• A56457 Billing and Coding: Corneal Pachymetry
• A56537 Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)
• A56544 Billing and Coding: Cataract Extraction
• A56548 Billing and Coding: Corneal Pachymetry
• A56551 Billing and Coding: Visual Fields Testing

…and 15 more. Check the coverage tool for your CPT code.

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All FY2026 ICD-10-CM changes

ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.