U.S. ICD-10-CM · FY 2027

A57 ICD-10-CM Code: Chancroid

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

A57

Chancroid

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where A57 sits

  1. 1

    Chapter 1

    Certain infectious and parasitic diseases (A00-B99)

  2. 2

    Section

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

  3. 3

    Category A57

    Chancroid

  4. 4

    Code A57

    Chancroid

Documentation details

Notes for this code

Inclusion terms

  • Ulcus molle

Code first

No “code first” instruction is listed for A57.

Use additional code

No “use additional code” instruction is listed for A57.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for A57.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for A57.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code A57 mean?

A57 is the FY 2027 U.S. ICD-10-CM code for “Chancroid.”

Is A57 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, A57 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is A57 located in ICD-10-CM?

A57 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Infections with a predominantly sexual mode of transmission (A50-A64) (A50–A64), under category A57, Chancroid.

What coding notes are listed for A57?

Its listed inclusion terms are Ulcus molle. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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