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ICD-10 diagnosis code

I21.9 Acute myocardial infarction, unspecified

This page in Swedish

I21.9 is the ICD-10 code for Acute myocardial infarction, unspecified. It is a four-character subcategory of I21 (Acute myocardial infarction), the most specific level in the WHO edition. It belongs to the block I20–I25 (Ischaemic heart diseases) in Chapter IX, Diseases of the circulatory system.

Code type
Subcategory (4 characters)
Chapter
IX · I00–I99
Classification
WHO ICD-10, 2019 version

What I21.9 includes

Conditions and terms that are coded here.

  • Myocardial infarction (acute) NOS

I21.9 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

I21.9Akut hjärtinfarkt, ospecificerad

NorwayICD-10-NO

I21.9Uspesifisert akutt hjerteinfarkt

  • I21.91Uspesifisert akutt hjerteinfarkt type 1
  • I21.92Uspesifisert akutt hjerteinfarkt type 2
  • I21.93Uspesifisert akutt hjerteinfarkt type 3
  • I21.95Uspesifisert akutt hjerteinfarkt type 5
  • I21.9AUspesifisert akutt hjerteinfarkt type 4a
  • I21.9BUspesifisert akutt hjerteinfarkt type 4b
DenmarkICD-10-DK

DI219Akut myokardieinfarkt UNS

  • DI219AType 2 myokardieinfarkt
FinlandICD-10-FI

I21.9Määrittämätön sydäninfarkti

  • I21.90Tarkemmin määrittämätön [akuutti ] sydäninfarkti ei osoitettavaa sepelvaltimon ahtaumaa
  • I21.91Tarkemmin määrittämätön sydäninfarkti, ahtautunut sepelvaltimo
  • I21.92Tarkemmin määrittämätön sydäninfarkti, sepelvaltimon trombi
  • I21.93Tarkemmin määrittämätön sydäninfarkti, sepelvaltimon embolus
  • I21.97Mahdollinen sydäninfarkti
  • I21.98Tarkemmin määrittämätön sydäninfarkti sepelvaltimon muu tukos
  • I21.99Tarkemmin määrittämätön sydäninfarkti, määrittämätön sepelvaltimotilanne
GermanyICD-10-GM

I21.9Akuter Myokardinfarkt, nicht näher bezeichnet

FranceICD-10-FR

I21.9Infarctus aigu du myocarde, sans précision

NetherlandsICD-10-NL

I21.9acuut myocardinfarct, niet-gespecificeerd

United StatesICD-10-CM

I21.9Acute myocardial infarction, 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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