A66.6

Bone and joint lesions of yaws

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

CMS-HCC V28

HCC92

Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis

CMS-HCC ESRD V24

HCC39

Bone/Joint/Muscle Infections/Necrosis

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · A66.6
Synonyms

Yaws ganglion Yaws goundou Yaws gumma, bone Yaws gummatous osteitis or periostitis Yaws hydrarthrosis Yaws osteitis Yaws periostitis (hypertrophic)

Inherited from A66Yaws
Includes

bouba frambesia (tropica) pian

Inherited from A65-A69Other spirochetal diseases
Excludes 2

leptospirosis (A27.-) syphilis (A50-A53)

Inherited from chapter 1Certain infectious and parasitic diseases
Includes

diseases generally recognized as communicable or transmissible

Excludes 1

certain localized infections - see body system-related chapters

Excludes 2

carrier or suspected carrier of infectious disease (Z22.-) infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-) infectious and parasitic diseases specific to the perinatal period (P35-P39) influenza and other acute respiratory infections (J00-J22)

Use additional

code to identify resistance to antimicrobial drugs (Z16.-)

Official Guidelines for A66.6

FY 2026 ›