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ICD-10 diagnosis code

I21.3 Acute transmural myocardial infarction of unspecified site

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I21.3 is the ICD-10 code for Acute transmural myocardial infarction of unspecified site. 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 I21.3 includes

Conditions and terms that are coded here.

  • Transmural myocardial infarction NOS

I21.3 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

I21.3Akut transmural hjärtinfarkt med ospecificerad lokalisation

NorwayICD-10-NO

I21.3Akutt transmuralt hjerteinfarkt med uspesifisert lokalisasjon

  • I21.31Akutt transmuralt hjerteinfarkt type 1 med uspesifisert lokalisasjon
  • I21.32Akutt transmuralt hjerteinfarkt type 2 med uspesifisert lokalisasjon
  • I21.33Akutt transmuralt hjerteinfarkt type 3 med uspesifisert lokalisasjon
  • I21.35Akutt transmuralt hjerteinfarkt type 5 med uspesifisert lokalisasjon
  • I21.3AAkutt transmuralt hjerteinfarkt type 4a med uspesifisert lokalisasjon
  • I21.3BAkutt transmuralt hjerteinfarkt type 4b med uspesifisert lokalisasjon
DenmarkICD-10-DK

DI213ST-elevations akut myokardieinfarkt

  • DI213AST-elevations akut myokardieinfarkt, anteriort
  • DI213BST-elevations akut myokardieinfarkt, inferiort/posteriort
  • DI213CST-elevations akut myokardieinfarkt, grenblok
FinlandICD-10-FI

I21.3Sijainniltaan määrittämätön ST-nousuinfarkti (STEMI)

  • I21.30Sijainniltaan määrittämätön ST-nousuinfarkti, ei osoitettavaa sepelvaltimon ahtaumaa
  • I21.31Sijainniltaan määrittämätön ST-nousuinfarkti, ahtautunut sepelvaltimo
  • I21.32Sijainniltaan määrittämätön ST-nousinfarkti, sepelvaltimon trombi
  • I21.33Sijainniltaan määrittämätön ST-nousuinfakti, sepelvaltimon embolus
  • I21.38Sijainniltaan määrittämätön ST-nousuinfarkti, sepelvaltimon muu tukos
  • I21.39Sijainniltaan määrittämätön ST-nousuinfarkti, määrittämätön sepelvaltimotilanne
GermanyICD-10-GM

I21.3Akuter transmuraler Myokardinfarkt an nicht näher bezeichneter Lokalisation

FranceICD-10-FR

I21.3Infarctus transmural aigu du myocarde, de localisation non précisée

NetherlandsICD-10-NL

I21.3acuut transmuraal myocardinfarct, lokalisatie niet-gespecificeerd

United StatesICD-10-CM

I21.3ST elevation (STEMI) myocardial infarction of unspecified site

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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