A57

Billable

ChapterA00–B99

Rankcategory

Official Description

Chancroid

Metadata & Insights

•Billable/specific code (valid for reimbursement).
•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.-)

A50-A64 Parent Instructions

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

nonspecific and nongonococcal urethritis (N34.1)
Reiter's disease (M02.3-)

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

human immunodeficiency virus [HIV] disease (B20)

Instructional Notes

Includes

Ulcus molle

Clinical Hierarchy

BillableHas subcodes

CH1Certain infectious and parasitic diseases (A00-B99)

A50-A64Infections with a predominantly sexual mode of transmission (A50-A64)

A57ChancroidBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to A57:

Infections with a predominantly sexual mode of transmission (A50-A64)

View context instructions

chapterCH1

Certain infectious and parasitic diseases (A00-B99)

View context instructions

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

Inflammation of the Male Reproductive System with MCC

Inflammation of the Male Reproductive System without MCC

Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC

Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC

Infections, Female Reproductive System with MCC

Infections, Female Reproductive System with CC

Infections, Female Reproductive System without CC/MCC

Cross Reference

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