Initial lesions of yaws

This code represents the primary stage of yaws, a chronic, non-venereal treponemal infection caused by Treponema pallidum pertenue. It is characterized by the initial skin lesion, typically a papule that evolves into a papilloma or "mother yaw," which is often ulcerated.

Use this code when documentation clearly indicates the presence of the primary lesion of yaws, such as a "mother yaw," papilloma, or ulcerated papule, as the initial manifestation of the disease. This diagnosis is typically supported by clinical examination in endemic areas and may be confirmed by serological tests.

• Differentiate from other treponemal infections like syphilis (ICD-9-CM 090-097) or pinta (ICD-9-CM 103.0-103.9).
• Ensure documentation specifies "initial lesions" to support this specific code, rather than later stages of yaws.
• Consider co-occurring conditions or complications of yaws, which would require additional codes.