ICD-10-CM 2027
ICD-10 code for early yaws
From the official ICD-10-CM alphabetic index entry “Yaws › early (cutaneous) (macular) (maculopapular) (micropapular) (papular)”. Page updated September 29, 2026.
About coding early yaws
The ICD-10-CM code for early yaws is A66.2 (Other early skin lesions of yaws). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on A66.2.
Within A66, choose A66.2 (Other early skin lesions of yaws) only when documentation doesn't support a more specific option: initial lesions of yaws (A66.0), multiple papillomata and wet crab yaws (A66.1), Hyperkeratosis of yaws (A66.3), Gummata and ulcers of yaws (A66.4), Gangosa (A66.5), bone and joint lesions of yaws (A66.6), other manifestations of yaws (A66.7), latent yaws (A66.8) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 606 (Minor Skin Disorders with MCC, relative weight 1.5728) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific early yaws codes (official index)
Common questions about early yaws ICD-10 codes
What is the ICD-10 code for early yaws?
- A66.2 — Other early skin lesions of yaws. More specific codes apply when the documentation supports them: A66.2, A66.2.
What is the ICD-10 code for frambeside early yaws?
- A66.2 — Other early skin lesions of yaws.
What is the ICD-10 code for skin lesions nec early yaws?
- A66.2 — Other early skin lesions of yaws.
Is A66.2 billable?
- Yes. A66.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A66.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A66.2 as a principal diagnosis.
Is A66.2 a CC or MCC?
- No. A66.2 is neither a CC nor an MCC under MS-DRG v44.0.