I51.8 is the ICD-10 code for Other ill-defined heart diseases. It is a four-character subcategory of I51 (Complications and ill-defined descriptions of heart disease), the most specific level in the WHO edition. It belongs to the block I30–I52 (Other forms of heart disease) in Chapter IX, Diseases of the circulatory system.
- Code type
- Subcategory (4 characters)
- Chapter
- IX · I00–I99
- Classification
- WHO ICD-10, 2019 version
What I51.8 includes
Conditions and terms that are coded here.
- Carditis (acute)(chronic)
- Pancarditis (acute)(chronic)
I51.8 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
I51.8Annen spesifisert dårlig definert hjertesykdom
DI518Anden dårligt defineret hjertesygdom
- DI518AAkut karditis
- DI518BKronisk karditis
I51.8Muu puutteellisesti määritetty sydänsairaus
I51.8Sonstige ungenau bezeichnete Herzkrankheiten
I51.8Autres cardiopathies mal définies
I51.8overige slecht omschreven hartziekten
Listed through more specific codes:
- I51.81Takotsubo syndrome
- I51.89Other ill-defined heart diseases
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.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free