World Health Organization · 2026-01 · English
International provisional assignment of new diseases of uncertain aetiology and emergency use
Official WHO ICD-11 MMS tabulation. This international classification is separate from US ICD-10-CM. For complete instructions and postcoordination, consult the WHO browser.
More specific codes
RA00Conditions of uncertain aetiology and emergency useRA01COVID-19RA02Post COVID-19 conditionRA03Multisystem inflammatory syndrome associated with COVID-19RA04International emergency code 05RA05International emergency code 06RA06International emergency code 07RA07International emergency code 08RA08International emergency code 09RA09International emergency code 10© World Health Organization · CC BY-ND 3.0 IGO