AHA Coding Clinic® for ICD-9 - 1984 July - August

Coding Ischemic Heart Disease (410-414)

This article provides information and guidelines on the following important considerations in the assignment of codes from the 410-414 (ischemic heart disease) series: clarification of category assignments, current patient care protocols, and limitations caused by the diagnosis-related group (DRG) system. Atherosclerosis Note: As of October 1, 1994, code 414.0 has been expanded to fifth digits to indicate specific site of coronary atherosclerosis. Arteriosclerotic coronary artery disease and atherosclerosis of the coronary artery are interchangeable terms classifiable to 414.0. Arteriosclerosis is a generic term that may be further delineated as to type. For example, atherosclerosis or atheroma is...

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