03120AY ICD-10-PCS Code: Bypass Innominate Artery to Upper Artery with Autologous Arterial Tissue, Open Approach

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

The MS-DRG grouper treats this as an operating room procedure. It appears in the surgical logic of 4 MS-DRGs:

• MDC 05 — Complex Aortic Arch Procedures: DRG 209
• MDC 05 — Other Vascular Procedures: DRG 252, DRG 253, DRG 254

From the CMS MS-DRG Definitions Manual, Appendix E. Actual DRG assignment depends on the complete claim.

Related Codes

Same operation — other Body Part

Same table and root operation, differing only in the body part character.

031H0AY — Bypass Right Common Carotid Artery to Upper Artery with Autologous Arterial Tissue, Open Approach, 031J0AY — Bypass Left Common Carotid Artery to Upper Artery with Autologous Arterial Tissue, Open Approach

Same operation — other Device

Same table and root operation, differing only in the device character.

031209Y — Bypass Innominate Artery to Upper Artery with Autologous Venous Tissue, Open Approach, 03120JY — Bypass Innominate Artery to Upper Artery with Synthetic Substitute, Open Approach, 03120KY — Bypass Innominate Artery to Upper Artery with Nonautologous Tissue Substitute, Open Approach, 03120ZY — Bypass Innominate Artery to Upper Artery, Open Approach

Same operation — other Qualifier

Same table and root operation, differing only in the qualifier character.

03120A9 — Bypass Innominate Artery to Right Lower Leg Artery with Autologous Arterial Tissue, Open Approach, 03120AB — Bypass Innominate Artery to Left Lower Leg Artery with Autologous Arterial Tissue, Open Approach, 03120AC — Bypass Innominate Artery to Bilateral Lower Leg Artery with Autologous Arterial Tissue, Open Approach, 03120AD — Bypass Innominate Artery to Upper Arm Vein with Autologous Arterial Tissue, Open Approach, 03120AF — Bypass Innominate Artery to Lower Arm Vein with Autologous Arterial Tissue, Open Approach, 03120AJ — Bypass Innominate Artery to Right Extracranial Artery with Autologous Arterial Tissue, Open Approach, 03120AK — Bypass Innominate Artery to Left Extracranial Artery with Autologous Arterial Tissue, Open Approach, 03120AW — Bypass Innominate Artery to Lower Extremity Vein with Autologous Arterial Tissue, Open Approach, +9 more

Same procedure category (CCSR), other tables

AHRQ's Clinical Classifications Software Refined groups these ICD-10-PCS procedures with this one under Peripheral arterial bypass procedures (Cardiovascular Procedures); listed here are the members in other PCS tables. Source: Clinical Classifications Software Refined (CCSR), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, November 2025.

+1464 more

Contextual Map

Every relationship of 03120AY in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run 03120AY with these 5 related codes in Claim Check

PCS table

• 031[PCS table]— CMS ICD-10-PCS tables
• Medical and Surgical — Section: Medical and Surgical[Section]: “Medical and Surgical”— CMS ICD-10-PCS tables
• Upper Arteries — Body System: Upper Arteries[Body System]: “Upper Arteries”— CMS ICD-10-PCS tables
• Bypass — Operation: Bypass[Operation]: “Bypass”— CMS ICD-10-PCS tables

MS-DRG participation

• DRG 209 — COMPLEX AORTIC ARCH PROCEDURES[MS-DRG]: “COMPLEX AORTIC ARCH PROCEDURES — Complex Aortic Arch Procedures (MDC 05)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 252 — OTHER VASCULAR PROCEDURES WITH MCC[MS-DRG]: “OTHER VASCULAR PROCEDURES WITH MCC — Other Vascular Procedures (MDC 05)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 253 — OTHER VASCULAR PROCEDURES WITH CC[MS-DRG]: “OTHER VASCULAR PROCEDURES WITH CC — Other Vascular Procedures (MDC 05)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026
• DRG 254 — OTHER VASCULAR PROCEDURES WITHOUT CC/MCC[MS-DRG]: “OTHER VASCULAR PROCEDURES WITHOUT CC/MCC — Other Vascular Procedures (MDC 05)”— CMS MS-DRG Definitions Manual (Appendix E) · FY2026

Clinical classification (CCSR)

• CAR014 — Peripheral arterial bypass procedures[CCSR category]: “Peripheral arterial bypass procedures — Cardiovascular Procedures”— AHRQ CCSR for ICD-10-PCS Procedures (HCUP) · v2026.1

MDC crossing · diagnoses (1844)

• MDC 05 — Diseases and Disorders of the Circulatory System[MDC crossing]: “Diseases and Disorders of the Circulatory System — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”— CMS MS-DRG Definitions Manual · FY2026
• A36.81 — Diphtheritic cardiomyopathy[Same-MDC diagnosis]: “Diphtheritic cardiomyopathy — grouped in MDC 05, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A39.50 — Meningococcal carditis, unspecified[Same-MDC diagnosis]: “Meningococcal carditis, unspecified — grouped in MDC 05, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A39.51 — Meningococcal endocarditis[Same-MDC diagnosis]: “Meningococcal endocarditis — grouped in MDC 05, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A39.52 — Meningococcal myocarditis[Same-MDC diagnosis]: “Meningococcal myocarditis — grouped in MDC 05, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• A39.53 — Meningococcal pericarditis[Same-MDC diagnosis]: “Meningococcal pericarditis — grouped in MDC 05, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• and 1839 more

Nearest codes

• 031209Y — Bypass Innominate Artery to Upper Artery with Autologous Venous Tissue, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 03120A0 — Bypass Innominate Artery to Right Upper Arm Artery with Autologous Arterial Tissue, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 03120A1 — Bypass Innominate Artery to Left Upper Arm Artery with Autologous Arterial Tissue, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 03120A2 — Bypass Innominate Artery to Bilateral Upper Arm Artery with Autologous Arterial Tissue, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 03120A3 — Bypass Innominate Artery to Right Lower Arm Artery with Autologous Arterial Tissue, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 03120A4 — Bypass Innominate Artery to Left Lower Arm Artery with Autologous Arterial Tissue, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 03120A5 — Bypass Innominate Artery to Bilateral Lower Arm Artery with Autologous Arterial Tissue, Open Approach[One axis away]— CMS ICD-10-PCS tables
• 03120A6 — Bypass Innominate Artery to Right Upper Leg Artery with Autologous Arterial Tissue, Open Approach[One axis away]— CMS ICD-10-PCS tables