The ICD code I21 is used to code Coronary artery disease
Coronary artery disease (CAD), also known as ischemic heart disease (IHD), is a group of diseases that includes: stable angina, unstable angina, myocardial infarction, and sudden coronary death. It is within the group of cardiovascular diseases of which it is the most common type.
Coding Notes for I21.4 Info for medical coders on how to properly use this ICD-10 code
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
MS-DRG Mapping
DRG Group #222-227 - Cardiac defibrillator implant with cardiac catheterization with ami or hf or shock with MCC.
ICD-10-CM Alphabetical Index References for 'I21.4 - Non-ST elevation (NSTEMI) myocardial infarction'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code I21.4. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code I21.4 and a single ICD9 code, 410.71 is an approximate match for comparison and conversion purposes.
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