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H53.61

H53.61Abnormal dark adaptation curve

Billable / specific codeICD-10-CM

H53.61 is a billable, specific ICD-10-CM code for abnormal dark adaptation curve. It is valid for submission on a claim.

Risk adjustment

H53.61 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

H53.61 is named in 11 Medicare coverage policies 11 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
  • A56551Billing and Coding: Visual Fields Testing
  • A56672Billing and Coding: Electroretinography (ERG)
  • A56726Billing and Coding: Ophthalmology: Posterior Segment Imaging (Extended Ophthalmoscopy and Fundus Photography)

How H53.61 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to H53.61.

  • Abnormal, abnormality, abnormalitiesdark adaptation curve
  • Blindnessnightabnormal dark adaptation curve

Related codes at this level

Codes that share H53.6. If H53.61 is not quite right, the correct code is usually one of these.

Questions about H53.61

Is H53.61 a billable ICD-10-CM code?
Yes. H53.61 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does H53.61 sit in the tabular list?
Diseases of the eye and adnexa (H00-H59), in the block Visual disturbances and blindness (H53-H54).
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.