A56 is the ICD-10 code for Other sexually transmitted chlamydial diseases. It is a three-character category divided into 6 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block A50–A64 (Infections with a predominantly sexual mode of transmission) in Chapter I, Certain infectious and parasitic diseases.
- Code type
- Category (3 characters)
- Chapter
- I · A00–B99
- Classification
- WHO ICD-10, 2019 version
What A56 includes
Conditions and terms that are coded here.
- sexually transmitted diseases due to Chlamydia trachomatis
What A56 excludes
Conditions that look similar but belong under another code.
Subcodes of A56
- A56.0Chlamydial infection of lower genitourinary tract
- A56.1Chlamydial infection of pelviperitoneum and other genitourinary organs
- A56.2Chlamydial infection of genitourinary tract, unspecified
- A56.3Chlamydial infection of anus and rectum
- A56.4Chlamydial infection of pharynx
- A56.8Sexually transmitted chlamydial infection of other sites
A56 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DA56Andre seksuelt overførte klamydiainfektioner
A56Muut sukupuoliteitse tarttuvat klamydiataudit
A56Sonstige durch Geschlechtsverkehr übertragene Chlamydienkrankheiten
A56Autres infections à Chlamydia transmises par voie sexuelle
A56overige seksueel overdraagbare Chlamydia-infecties
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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