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A66.4

Billable

Gummata and ulcers of yaws

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

This condition involves the development of gummas (soft, rubbery growths) and ulcers (open sores) caused by yaws, a tropical infection spread through skin contact. These lesions typically appear on the skin and can be disfiguring if left untreated.

Coding Tips

  • •Yaws (caused by Treponema pallidum subspecies pertenue) is a reportable disease in most jurisdictions; verify local reporting requirements before finalizing the code
  • •Ensure documentation specifies the presence of gummata and/or ulcers to justify code A66.4 rather than other yaws manifestations (A66.0-A66.3, A66.8-A66.9)

Code Hierarchy

└A66Yaws└A66.4Gummata and ulcers of yaws
└A66.4Gummata and ulcers of yaws

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