A57 – Chancroid
ICD-10-CM 2027 diagnosis code · Infections with a predominantly sexual mode of transmission
ICD-10-CM code
A57
- Code
A57(claims format:A57)- Description
- Chancroid
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- A50-A64 Infections with a predominantly sexual mode of transmission
Notes for A57
Applicable to:
- Ulcus molle
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block A50-A64
Excludes1 (not coded here):
Excludes2 (not included here):
- human immunodeficiency virus [HIV] disease (B20)
Index terms for A57
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Chancroid
- Sore, soft
- Ulcus, molle
- Virulent bubo
- Chancre, soft
- Bubo, virulent
- Ducreyi chancre
- Chancre, simple
- Nisbet's chancre
- Ducrey's chancre
- Chancre, ducreyi
- Chancre, Nisbet's
- Chancre, Ducrey's
- Bubo, chancroidal
- Bubo, soft chancre
- Chancre, phagedenic
- Chancre, soft, bubo
- Adenitis, chancroid
- Phimosis, chancroidal
- Lymphangitis, chancroidal
- Paraphimosis, chancroidal
- Lymphadenitis, chancroidal
- Bubo, inguinal, chancroidal
- Bubo, due to Haemophilus ducreyi
- Bubo, inguinal, due to H. ducreyi
Frequently asked questions
What is ICD-10 code A57?
A57 is the ICD-10-CM code for chancroid, in the block A50-A64 (Infections with a predominantly sexual mode of transmission).
Is A57 a billable code?
Yes. A57 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.