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H66.3X2

H66.3X2: Other chronic suppurative otitis media, left ear

Billable / specific codeICD-10-CMleft

H66.3X2 is a billable, specific ICD-10-CM code for other chronic suppurative otitis media, left ear. It is valid for submission on a claim.

Check H66.3X2 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above H66.3X2

A category’s note binds every code beneath it.

Written on H66.3: Other chronic suppurative otitis media

  • tuberculous otitis media (A18.6)

Risk adjustment

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

Medicare coverage

H66.3X2 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A57204Billing and Coding: MRI and CT Scans of the Head and Neck
  • A57434Billing and Coding: Vestibular and Audiologic Function Studies

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under H66.3X

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.