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H21.502

H21.502Unspecified adhesions of iris, left eye

Billable / specific codeICD-10-CMleft

H21.502 is a billable, specific ICD-10-CM code for unspecified adhesions of iris, left eye. It is valid for submission on a claim.

Risk adjustment

H21.502 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

H21.502 is named in 6 Medicare coverage policies 6 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A53060Billing and Coding: Ophthalmology: Extended Ophthalmoscopy and Fundus Photography
  • A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)
  • A57068Billing and Coding: Ocular Photography - External
  • A57071Billing and Coding: Ophthalmology: Posterior Segment Imaging (Extended Ophthalmoscopy and Fundus Photography)

Related codes at this level

Codes that share H21.50. If H21.502 is not quite right, the correct code is usually one of these.

Questions about H21.502

Is H21.502 a billable ICD-10-CM code?
Yes. H21.502 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does H21.502 sit in the tabular list?
Diseases of the eye and adnexa (H00-H59), in the block Disorders of sclera, cornea, iris and ciliary body (H15-H22).
ICD-10-CMFY2026-Apr· effective April 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.