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H61.811

H61.811Exostosis of right external canal

Billable / specific codeICD-10-CMright

H61.811 is a billable, specific ICD-10-CM code for exostosis of right external canal. It is valid for submission on a claim.

Risk adjustment

H61.811 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

H61.811 is named in 1 Medicare coverage policy 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A57204Billing and Coding: MRI and CT Scans of the Head and Neck

Code history

H61.811 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share H61.81. If H61.811 is not quite right, the correct code is usually one of these.

Questions about H61.811

Is H61.811 a billable ICD-10-CM code?
Yes. H61.811 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does H61.811 sit in the tabular list?
Diseases of the ear and mastoid process (H60-H95), in the block Diseases of external ear (H60-H62).
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.