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ICD-10 diagnosis code

I50 Heart failure

This page in Swedish

I50 is the ICD-10 code for Heart failure. It is a three-character category divided into 3 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block I30–I52 (Other forms of heart disease) in Chapter IX, Diseases of the circulatory system.

Code type
Category (3 characters)
Chapter
IX · I00–I99
Classification
WHO ICD-10, 2019 version

What I50 excludes

Conditions that look similar but belong under another code.

  • complicating:
    • abortion or ectopic or molar pregnancy O00-O07, O08.8
    • obstetric surgery and procedures O75.4
  • due to hypertension I11.0
  • following cardiac surgery or due to presence of cardiac prosthesis I97.1
  • neonatal cardiac failure P29.0

Subcodes of I50

I50 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

I50Hjärtinsufficiens

DenmarkICD-10-DK

DI50Hjertesvigt

FinlandICD-10-FI

I50Sydämen vajaatoiminta

GermanyICD-10-GM

I50Herzinsuffizienz

FranceICD-10-FR

I50Insuffisance cardiaque

NetherlandsICD-10-NL

I50hartdecompensatie

United StatesICD-10-CM

Listed through more specific codes:

  • I50.20Unspecified systolic (congestive) heart failure
  • I50.21Acute systolic (congestive) heart failure
  • I50.22Chronic systolic (congestive) heart failure
  • I50.23Acute on chronic systolic (congestive) heart failure
  • I50.30Unspecified diastolic (congestive) heart failure
  • I50.31Acute diastolic (congestive) heart failure
  • I50.32Chronic diastolic (congestive) heart failure
  • I50.33Acute on chronic diastolic (congestive) heart failure
  • and 8 more national subcodes

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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