Diagnosis Code


Code Information

Diagnosis Code: A66.6

Short Description: Bone and joint lesions of yaws

Long Description: Bone and joint lesions of yaws

The code A66.6 is VALID for claim submission

Code Classification:

  • Certain infectious and parasitic diseases (A00–B99)
    • Other spirochetal diseases (A65-A69)
      • Yaws (A66)
        • A66.6 Bone and joint lesions of yaws

Code Version: 2022 ICD-10-CM


  • Arthritis caused by spirochaetale infection
  • Bone and/or joint yaws lesions
  • Exostosis of jaw
  • Exostosis of skull
  • Ganglion of yaws
  • Goundou of yaws
  • Gummatous osteitis of yaws
  • Gummatous periostitis of yaws
  • Hydrarthrosis of yaws
  • Hypertrophic periostitis of yaws
  • Yaws gumma of bone
  • Yaws of joint
  • Yaws osteitis
  • Yaws periostitis

Diagnostic Related Group(s)

The code A66.6 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Septic Arthritis With Mcc (548)
  • Septic Arthritis With Cc (549)
  • Septic Arthritis Without Cc/mcc (550)

References to Index of Diseases and Injuries

The code A66.6 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Yaws ganglion
    • Yaws goundou
    • Yaws gumma, bone
    • Yaws gummatous osteitis or periostitis
    • Yaws hydrarthrosis
    • Yaws osteitis
    • Yaws periostitis (hypertrophic)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
A66.6 Right Arrow 102.6 Yaws of bone & joint

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
A66 Yaws
A66.0 Initial lesions of yaws
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
A66.7 Other manifestations of yaws
A66.8 Latent yaws
A66.9 Yaws, unspecified

This page was last updated on: 10/1/2023