A66

Non-Billable

ChapterA00–B99

Rankcategory

Official Description

Yaws

Use a more specific code (10 billable)

A66.0Initial lesions of yaws A66.1Multiple papillomata and wet crab yaws A66.2Other early skin lesions of yaws A66.3Hyperkeratosis of yaws A66.4Gummata and ulcers of yaws A66.5Gangosa A66.6Bone and joint lesions of yaws A66.7Other manifestations of yaws A66.8Latent yaws A66.9Yaws, unspecified

Metadata & Insights

•Non-billable category (requires more specific sub-code).
•Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes

diseases generally recognized as communicable or transmissible

Excludes1(Not coded here. Use a different code.)

certain localized infections - see body system-related chapters

Excludes2(Not included here. Code separately if applicable.)

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

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

A65-A69 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

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

Instructional Notes

Includes

bouba
frambesia (tropica)
pian

Clinical Hierarchy

BillableHas subcodes

CH1Certain infectious and parasitic diseases (A00-B99)

A65-A69Other spirochetal diseases (A65-A69)

A66YawsNot billable

A66.0Initial lesions of yawsBillable

A66.1Multiple papillomata and wet crab yawsBillable

A66.2Other early skin lesions of yawsBillable

A66.3Hyperkeratosis of yawsBillable

A66.4Gummata and ulcers of yawsBillable

A66.5GangosaBillable

A66.6Bone and joint lesions of yawsBillable

A66.7Other manifestations of yawsBillable

A66.8Latent yawsBillable

A66.9Yaws, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to A66:

blockA65-A69

Other spirochetal diseases (A65-A69)

View context instructions

chapterCH1

Certain infectious and parasitic diseases (A00-B99)

View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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