021309CBypass Coronary Artery, Four or More Arteries from Thoracic Artery with Autologous Venous Tissue, Open Approach

021309C is the ICD-10-PCS code for a bypass procedure on the coronary artery, four or more arteries using an open approach with autologous venous tissue (qualifier: thoracic artery). In ICD-10-PCS, bypass means altering the route of passage of the contents of a tubular body part.

In plain terms, this corresponds to Double internal mammary-coronary artery bypass, the ICD-9-CM procedure title it maps to (36.16).

For a different body part, codes include 021009C (coronary artery, one artery), 021109C (coronary artery, two arteries) and 021209C (coronary artery, three arteries).

The same procedure with a different approach is coded 021349C (percutaneous endoscopic).

With a different device, use 021308C (zooplastic tissue), 02130AC (autologous arterial tissue), 02130JC (synthetic substitute), 02130KC (nonautologous tissue substitute) and 02130ZC (no device).

It is an operating-room procedure in the MS-DRG logic for DRG 212 (Concomitant Aortic and Mitral Valve Procedures), DRG 231 (Coronary Bypass with PTCA with MCC), DRG 232 (Coronary Bypass with PTCA without MCC), DRG 233 (Coronary Bypass with Cardiac Catheterization or Open Ablation with MCC), DRG 234 (Coronary Bypass with Cardiac Catheterization or Open Ablation without MCC) and DRG 235 (Coronary Bypass without Cardiac Catheterization with MCC), under the surgical categories “Concomitant Aortic and Mitral Valve Procedures”, “” and “Coronary Bypass without Cardiac Catheterization”.

It has been valid since ICD-10-PCS took effect on October 1, 2015.