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ICD-10 diagnosis code

A43.9 Nocardiosis, unspecified

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A43.9 is the ICD-10 code for Nocardiosis, unspecified. It is a four-character subcategory of A43 (Nocardiosis), the most specific level in the WHO edition. It belongs to the block A30–A49 (Other bacterial diseases) in Chapter I, Certain infectious and parasitic diseases.

Code type
Subcategory (4 characters)
Chapter
I · A00–B99
Classification
WHO ICD-10, 2019 version

A43.9 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

A43.9Nokardios, ospecificerad

NorwayICD-10-NO

A43.9Uspesifisert nokardiose

DenmarkICD-10-DK

DA439Nocardiose UNS

FinlandICD-10-FI

A43.9Määrittämätön nokardioosi

GermanyICD-10-GM

A43.9Nokardiose, nicht näher bezeichnet

FranceICD-10-FR

A43.9Nocardiose, sans précision

NetherlandsICD-10-NL

A43.9nocardiose, niet-gespecificeerd

United StatesICD-10-CM

A43.9Nocardiosis, unspecified

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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