A patient was admitted with chest pain and diaphoresis. Inpatient work-up revealed acute coronary insufficiency and some hypertensive cardiomegaly. After thorough evaluation of his cardiac and respiratory status via chest x-ray and combined right and left cardiac catheterization, the patient underwent open coronary triple bypass surgery from the aorta using autologous venous tissue. The patient's postoperative course was complicated by fever of unknown origin. The patient was discharged 10 days postoperatively, ambulating well and afebrile. The principal procedure code is __________.
a. 021209W
b. 4A020N8
c. 5A1221Z
d. BW03ZZZ
a
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