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ICD-10 diagnosis code

A56.4 Chlamydial infection of pharynx

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A56.4 is the ICD-10 code for Chlamydial infection of pharynx. It is a four-character subcategory of A56 (Other sexually transmitted chlamydial diseases), the most specific level in the WHO edition. 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
Subcategory (4 characters)
Chapter
I · A00–B99
Classification
WHO ICD-10, 2019 version

A56.4 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

A56.4Klamydiainfektion i svalget

NorwayICD-10-NO

A56.4Klamydiainfeksjon i svelg

DenmarkICD-10-DK

DA564Klamydiainfektion i svælget

FinlandICD-10-FI

A56.4Nielun klamydiainfektio

GermanyICD-10-GM

A56.4Chlamydieninfektion des Pharynx

FranceICD-10-FR

A56.4Infection à Chlamydia du pharynx

NetherlandsICD-10-NL

A56.4Chlamydia-infectie van farynx

United StatesICD-10-CM

A56.4Chlamydial infection of pharynx

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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