A66.6 Bone and joint lesions of yaws

Billable ICD-10-CM code, FY2026.

Applicable to

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

Applies from A66 Yaws

Includes

• bouba
• frambesia (tropica)
• pian

Risk adjustment (HCC)

• CMS-HCC V28: HCC 92 — Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis
• CMS-HCC V22: HCC 39 — Bone/Joint/Muscle Infections/Necrosis
• ESRD V24: HCC 39

MS-DRG index

Defines the logic of DRG(s) 548-550 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 102.6 Bone and joint lesions due to yaws

Code annotations containing back-references to A66.6

Back-references to A66.6

• Type 1 Excludes: M25.4 Effusion of joint ("hydrarthrosis in yaws (A66.6)")
• Type 1 Excludes: M67.4 Ganglion ("ganglion in yaws (A66.6)")

Diagnosis Index entries for A66.6

• Ganglion (compound) (diffuse) (joint) (tendon (sheath)) › of yaws (early) (late)
• Goundou
• Gumma (syphilitic) › bone › of yaws (late)
• Gumma (syphilitic) › yaws › bone
• Henpue, henpuye
• Hydrarthrosis › of yaws (early) (late)
• Osteitis › due to yaws
• Periostitis (albuminosa) (circumscribed) (diffuse) (infective) (monomelic) › yaws (hypertrophic) (early) (late)
• Yaws › bone lesions
• Yaws › ganglion
• Yaws › gumma, gummata › bone
• Yaws › gummatous › osteitis
• Yaws › gummatous › periostitis
• Yaws › hydrarthrosis
• Yaws › joint lesions
• Yaws › osteitis
• Yaws › periostitis (hypertrophic)

Nearby codes

• A66.1 Multiple papillomata and wet crab yaws
• A66.2 Other early skin lesions of yaws
• A66.3 Hyperkeratosis of yaws
• A66.4 Gummata and ulcers of yaws
• A66.5 Gangosa
• A66.6 Bone and joint lesions of yaws (this code)
• A66.7 Other manifestations of yaws
• A66.8 Latent yaws
• A66.9 Yaws, unspecified