AHA Coding Clinic® for ICD-9 - 1990 Third Quarter

Sequencing of Angina and Coronary Heart Disease

Note: As of October 1, 2005, code 00.66 is used to report percutaneous transluminal coronary angioplasty [PTCA] or coronary atherectomy. Assign also a code to identify the number of vessels treated (00.40-00.43). As of October 1, 2005, assign code 99.10 as an additional code for the injection or infusion of a thrombolytic agent performed in conjunction with the PTCA. The Central Office on ICD-9-CM receives numerous questions about the proper selection of principal diagnosis when a patient is admitted with angina pectoris and coronary heart disease. Angina pectoris is a condition characterized by chest pain...

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