ICD-10-CM · FY 2026 APRIL UPDATE
A66
Yaws
Diagnosis reference
Nonbillable categoryThis entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.
Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification
Related entries
Up to 30 descendants in this category
| CODE | DESCRIPTION | TYPE |
|---|---|---|
| A66.0 | Initial lesions of yaws | Billable |
| A66.1 | Multiple papillomata and wet crab yaws | Billable |
| A66.2 | Other early skin lesions of yaws | Billable |
| A66.3 | Hyperkeratosis of yaws | Billable |
| A66.4 | Gummata and ulcers of yaws | Billable |
| A66.5 | Gangosa | Billable |
| A66.6 | Bone and joint lesions of yaws | Billable |
| A66.7 | Other manifestations of yaws | Billable |
| A66.8 | Latent yaws | Billable |
| A66.9 | Yaws, unspecified | Billable |
Use the complete reference
This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.
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