MCMedicalCodingSoftware
H40.2291

H40.2291: Chronic angle-closure glaucoma, unspecified eye, mild stage

Billable / specific codeICD-10-CMunspecified

H40.2291 is a billable, specific ICD-10-CM code for chronic angle-closure glaucoma, unspecified eye, mild stage. It is valid for submission on a claim.

Check H40.2291 with the rest of the claim: free scrubber

7th character "1": mild stage

One of the following 7th characters is to be assigned to each code in subcategory H40.22 to designate the stage of glaucoma

0
stage unspecified
1
mild stage
2
moderate stage
3
severe stage
4
indeterminate stage

Excludes1 inherited from the categories above H40.2291

A category’s note binds every code beneath it.

Written on H40.2: Primary angle-closure glaucoma

Written on H40: Glaucoma

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

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

H40.2291 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A53060Billing and Coding: Ophthalmology: Extended Ophthalmoscopy and Fundus Photography
  • A56457Billing and Coding: Corneal Pachymetry
  • A57070Billing and Coding: Ophthalmic Biometry for Intraocular Lens Power Calculation
  • A57637Billing and Coding: Visual Field Examination

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under H40.229

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.