ICD-10 diagnosis code

M03 Postinfective and reactive arthropathies in diseases classified elsewhere

M03 is the ICD-10 code for Postinfective and reactive arthropathies in diseases classified elsewhere. It is a three-character category divided into 4 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block M00–M03 (Infectious arthropathies) in Chapter XIII, Diseases of the musculoskeletal system and connective tissue.

Code type: Category (3 characters)
Chapter: XIII · M00–M99
Classification: WHO ICD-10, 2019 version

What M03 excludes

Conditions that look similar but belong under another code.

direct infections of joint in infectious and parasitic diseases classified elsewhere M01.-

Subcodes of M03

M03 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

M03Postinfektiösa och reaktiva artriter vid sjukdomar som klassificeras på annan plats

DenmarkICD-10-DK

DM03Postinfektiøse og reaktive artritter ved sygdomme klassificeret andetsteds

GermanyICD-10-GM

M03Postinfektiöse und reaktive Arthritiden bei anderenorts klassifizierten Krankheiten

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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