Yaws, unspecified

This code represents yaws, a chronic, infectious tropical disease caused by the spirochete Treponema pallidum subspecies pertenue, when the specific stage or manifestation of the disease is not documented. Yaws primarily affects the skin, bones, and joints, progressing through primary, secondary, and tertiary stages if untreated.

Use this code when a patient is diagnosed with yaws, but the medical record does not specify whether it is primary, secondary, or tertiary yaws, or if there are no specific manifestations documented. This code is appropriate when the provider's documentation simply states "yaws" without further detail.

• Avoid using this code if more specific documentation of the yaws stage (e.g., primary, secondary, tertiary) is available; instead, use the more precise codes within the A66 category.
• Ensure the documentation clearly indicates a diagnosis of yaws, even if unspecified.
• This code is for the disease itself, not for complications or sequelae, which would be coded separately if specified.