2020 ICD-10-CM Diagnosis Code A66.9

Yaws, unspecified

    2016 2017 2018 2019 2020 Billable/Specific Code
  • A66.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM A66.9 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of A66.9 - other international versions of ICD-10 A66.9 may differ.
The following code(s) above A66.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to A66.9:
  • A00-B99
    2020 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • 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.-)
    Certain infectious and parasitic diseases
  • A65-A69
    2020 ICD-10-CM Range A65-A69

    Other spirochetal diseases

    Type 2 Excludes
    Other spirochetal diseases
  • A66
    ICD-10-CM Diagnosis Code A66

    Yaws

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • bouba
    • frambesia (tropica)
    • pian
    Yaws
Approximate Synonyms
  • Yaws
Clinical Information
  • A systemic non-venereal infection of the tropics caused by treponema pallidum subspecies pertenue.
  • An endemic, infectious, nonvenereal disease in humans that presents mainly in children younger than 15 years. The disease occurs primarily in warm, humid, tropical areas of africa, asia, south america, and oceania, among poor rural populations where conditions of overcrowding and poor sanitation prevail. Infection with treponema pertenue, a subspecies of treponema pallidum, causes the disease.
  • Tropical systemic non-venereal infection caused by treponema pallidum subspecies pertenue.
ICD-10-CM A66.9 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 867 Other infectious and parasitic diseases diagnoses with mcc
  • 868 Other infectious and parasitic diseases diagnoses with cc
  • 869 Other infectious and parasitic diseases diagnoses without cc/mcc

Convert A66.9 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to A66.9:

ICD-10-CM Codes Adjacent To A66.9
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
A66.6 Bone and joint lesions of yaws
A66.7 Other manifestations of yaws
A66.8 Latent yaws
A66.9 Yaws, unspecified
A67 Pinta [carate]
A67.0 Primary lesions of pinta
A67.1 Intermediate lesions of pinta
A67.2 Late lesions of pinta
A67.3 Mixed lesions of pinta
A67.9 Pinta, unspecified
A68 Relapsing fevers
A68.0 Louse-borne relapsing fever
A68.1 Tick-borne relapsing fever
A68.9 Relapsing fever, unspecified

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.