Gummata and ulcers of yaws

This code signifies the late, tertiary manifestations of yaws, a chronic tropical infection caused by Treponema pallidum pertenue. It specifically refers to the presence of gummatous lesions (soft, non-cancerous growths) and ulcerations affecting the skin, subcutaneous tissues, and bones, which are characteristic of advanced yaws. These lesions can lead to significant tissue destruction and disfigurement.

Assign this code when documentation clearly indicates a diagnosis of late yaws with the presence of gummata or chronic ulcers. This typically occurs in patients from endemic regions who have not received adequate treatment for earlier stages of yaws. Supporting documentation should detail the specific skin or bone lesions consistent with tertiary yaws.

• Differentiate from syphilis (A50-A53) which is caused by Treponema pallidum pallidum and has distinct clinical presentations.
• Ensure documentation specifies "yaws" and not just generic ulcers or gummata, as these can have other etiologies.
• Consider additional codes for specific anatomical sites of involvement if further detail is provided (e.g., osteomyelitis if bone involvement is specified).