Chlamydial lymphogranuloma (venereum) (A55)
ICD-10 code A55 is used to identify chlamydial lymphogranuloma venereum, a sexually transmitted infection caused by the bacterium Chlamydia trachomatis. This condition involves infection and inflammation of the lymphatic vessels and nodes, often presenting as swollen lymph glands in the genital or groin area.
Known by several synonyms such as lymphogranuloma venereum, venereal disease caused by Chlamydia trachomatis, and infectious edema, this ICD-10 code helps healthcare providers and coders accurately document early, late, or latent stages of the disease. It also covers complications like chronic lymphatic vessel disease and lymphedema resulting from the infection, sometimes referred to as esthiomene or chronic acquired lymphedema. Applying code A55 ensures precise coding for cases involving this unique chlamydial dermatological and lymphatic disorder, aiding in appropriate treatment tracking and epidemiological reporting.
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.
- Climatic or tropical bubo
- Durand-Nicolas-Favre disease
- Esthiomene
- Lymphogranuloma inguinale
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.
Lymphogranuloma Venereum
Subacute inflammation of the inguinal lymph glands caused by certain immunotypes of CHLAMYDIA TRACHOMATIS. It is a sexually transmitted disease in the U.S. but is more widespread in developing countries. It is distinguished from granuloma venereum (see GRANULOMA INGUINALE), which is caused by Calymmatobacterium granulomatis.
