MCMedicalCodingSoftware
A66.4

A66.4: Gummata and ulcers of yaws

Billable / specific codeICD-10-CM

A66.4 is a billable, specific ICD-10-CM code for gummata and ulcers of yaws. It is valid for submission on a claim.

Check A66.4 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Gummatous frambeside
  • Nodular late yaws (ulcerated)

Risk adjustment

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

Alphabetic index entries that lead here

  • Frambeside›gummatous
  • Granuloma›tropicum
  • Gumma›ulcerative due to yaws
  • Gumma›yaws
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative›gumma, due to yaws
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative›yaws
  • Yaws›gumma, gummata
  • Yaws›late nodular(ulcerated)
  • Yaws›nodular, late(ulcerated)
  • Yaws›ulcers
  • Yaws›gummatous›frambeside

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under A66

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.