Chancroid (A57)
ICD-10 code A57 is specifically used to identify chancroid, a bacterial sexually transmitted infection characterized by painful ulcers, typically in the genital area.
This code covers various forms of chancroid, including anogenital ulcers, extragenital ulcers, and even latent infections where symptoms may be less obvious. The synonyms associated with this code; such as penile chancroid, vulval chancroid, and infective dermatosis of female genitalia; help clarify that A57 applies broadly to chancroid infections presenting in different anatomical sites. Medical coders rely on this ICD-10 code to document chancroid cases accurately, ensuring proper diagnosis and treatment tracking. Understanding that chancroid is a distinct condition, separate from other sexually transmitted infections, assists healthcare professionals in correctly using the ICD-10 code for chancroid during patient evaluation and billing processes.
Instructional Notations
Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Ulcus molle
Clinical Terms
The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.
Chancroid
Acute, localized autoinoculable infectious disease usually acquired through sexual contact. Caused by HAEMOPHILUS DUCREYI, it occurs endemically almost worldwide, especially in tropical and subtropical countries and more commonly in seaports and urban areas than in rural areas.
Haemophilus ducreyi
A species of HAEMOPHILUS that appears to be the pathogen or causative agent of the sexually transmitted disease, CHANCROID.
