021209CBypass Coronary Artery, Three Arteries from Thoracic Artery with Autologous Venous Tissue, Open Approach

021209C is the ICD-10-PCS code for a bypass procedure on the coronary artery, three 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 021309C (coronary artery, four or more arteries).

The same procedure with a different approach is coded 021249C (percutaneous endoscopic).

With a different device, use 021208C (zooplastic tissue), 02120AC (autologous arterial tissue), 02120JC (synthetic substitute), 02120KC (nonautologous tissue substitute) and 02120ZC (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.