A66: Yaws

Codes under A66 (Yaws). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
A66.0	Initial lesions of yaws	✓
A66.1	Multiple papillomata and wet crab yaws	✓
A66.2	Other early skin lesions of yaws	✓
A66.3	Hyperkeratosis of yaws	✓
A66.4	Gummata and ulcers of yaws	✓
A66.5	Gangosa	✓
A66.6	Bone and joint lesions of yaws	✓
A66.7	Other manifestations of yaws	✓
A66.8	Latent yaws	✓
A66.9	Yaws, unspecified	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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