AHA Coding Clinic® for ICD-9 - 1989 Third Quarter

Other Acute and Subacute Forms of Ischemic Heart Disease

Code Revisions Effective October 1, 1989 Category 411 has been revised to include a fifth-digit subclassification to identify coronary embolism or occlusion, without or not resulting in myocardial infarction. These revisions become effective October 1, 1989. The revised codes are as follows: 411 Other acute and subacute forms of ischemic heart disease 411.8 Other 411.81 Acute ischemic heart disease without myocardial infarction Coronary (artery): embolism without or not resulting in myocardial infraction occlusion without or not resulting in myocardial infraction 411.89 Other Coronary insufficiency (acute) Subendocardial ischemia Following are examples of the appropriate use of the...

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