What are the CPT (Current Procedural Terminology) codes and ICD10 (International Classification of Diseases, 10th Revision) codes related to Coronary Artery Bypass Grafting (CABG)?

CPT and ICD-10 Codes for Coronary Artery Bypass Grafting (CABG)

The most commonly used CPT codes for CABG procedures are 33533-33536, which correspond to coronary artery bypass grafting with 1-4 venous grafts. 1

CPT Codes for CABG

Primary CABG Procedures

• 33510-33514: Coronary artery bypass, vein only; 1-5 or more coronary venous grafts 2
• 33516-33519: Coronary artery bypass, using venous graft(s) and arterial graft(s); 1-4 or more coronary venous grafts 2
• 33533-33536: Coronary artery bypass, using arterial graft(s); 1-4 or more coronary arterial grafts 1

Specialized CABG Techniques

• 33510-33516: CABG with cardiopulmonary bypass (CPB) 2
• 33517-33530: CABG with combined procedures 2
• 33542: Myocardial resection (infarctectomy) 2

Minimally Invasive Approaches

• 33508: Endoscopic harvesting of vein graft for CABG procedure 3
• 33518: MIDCAB (Minimally Invasive Direct Coronary Artery Bypass) 3
• 33530: Reoperation, CABG or valve procedure, more than 1 month after original operation 2

ICD-10 Codes Related to CABG

Primary Diagnosis Codes

• I25.10: Atherosclerotic heart disease of native coronary artery without angina pectoris 2
• I25.110-I25.119: Atherosclerotic heart disease of native coronary artery with angina pectoris 2
• I21.0-I21.4: Acute myocardial infarction (various types) 2
• I25.2: Old myocardial infarction 2

Complication Codes

• I97.0: Postcardiotomy syndrome 2
• I97.110-I97.191: Other postprocedural cardiac functional disturbances 1, 4
• T82.0-T82.9: Complications of cardiac and vascular prosthetic devices, implants and grafts 5, 6

Procedural Codes

• 02100Z9-02104Z9: Bypass coronary artery, one to four or more arteries from coronary artery 2
• 021009W-021K0ZW: Bypass coronary artery from aorta 2
• 021109W-021K4ZW: Bypass coronary artery from internal mammary artery 2

Special Considerations

• When coding for CABG procedures, it's important to specify:

  • Number of vessels bypassed 1
  • Type of grafts used (venous vs. arterial) 5
  • Whether the procedure was a primary operation or reoperation 2

• For patients with concomitant conditions requiring additional procedures:

  • Valve repair/replacement with CABG requires additional codes 6
  • CABG with carotid endarterectomy requires separate coding 2
  • CABG in patients with malignancies may require modifier codes to indicate increased complexity 6

• Documentation should clearly indicate:

  • Vessels bypassed (LAD, circumflex, RCA, etc.) 5
  • Conduits used (LIMA, RIMA, radial artery, saphenous vein) 5
  • Any complications or special circumstances 4