ICD-10-PCS 2027 procedure code
03120ABBypass Innominate Artery to Left Lower Leg Artery with Autologous Arterial Tissue, Open Approach
Short description: Bypass Innom Art to L Low Leg Art w Autol Art, Open
Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data
About 03120AB
03120AB is the ICD-10-PCS code for a bypass procedure on the innominate artery using an open approach with autologous arterial tissue (qualifier: left lower leg 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 other (peripheral) vascular shunt or bypass, the ICD-9-CM procedure title it maps to (39.29).
For a different body part, codes include 03130AB (right subclavian artery), 03140AB (left subclavian artery), 03150AB (right axillary artery) and 03160AB (left axillary artery).
With a different device, use 031209B (autologous venous tissue), 03120JB (synthetic substitute), 03120KB (nonautologous tissue substitute) and 03120ZB (no device).
It is an operating-room procedure in the MS-DRG logic for DRG 252 (Other Vascular Procedures with MCC), DRG 253 (Other Vascular Procedures with CC) and DRG 254 (Other Vascular Procedures without CC/MCC), under the surgical category “Other Vascular Procedures”.
It has been valid since ICD-10-PCS took effect on October 1, 2015.
What each character means
- 1. Section
- 0Medical and Surgical
- 2. Body System
- 3Upper Arteries
- 3. Operation
- 1Bypass
Altering the route of passage of the contents of a tubular body part
Rerouting contents of a body part to a downstream area of the normal route, to a similar route and body part, or to an abnormal route and dissimilar body part. Includes one or more anastomoses, with or without the use of a device
Includes: Coronary artery bypass, colostomy formation
- 4. Body Part
- 2Innominate Artery
Includes: Brachiocephalic artery; Brachiocephalic trunk
- 5. Approach
- 0Open
Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure
- 6. Device
- AAutologous Arterial Tissue
- 7. Qualifier
- BLower Leg Artery, Left
Other versions of this procedure
Different body part
Different device
Different qualifier
- 03120A0Upper Arm Artery, Right
- 03120A1Upper Arm Artery, Left
- 03120A2Upper Arm Artery, Bilateral
- 03120A3Lower Arm Artery, Right
- 03120A4Lower Arm Artery, Left
- 03120A5Lower Arm Artery, Bilateral
- 03120A6Upper Leg Artery, Right
- 03120A7Upper Leg Artery, Left
- 03120A8Upper Leg Artery, Bilateral
- 03120A9Lower Leg Artery, Right
- 03120ACLower Leg Artery, Bilateral
- 03120ADUpper Arm Vein
MS-DRG v44.0 grouping
All DRGs →Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.
MDC 05 · Diseases and Disorders of the Circulatory System · Other Vascular Procedures
ICD-9-CM equivalent
Converter →- 39.29Other (peripheral) vascular shunt or bypassapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about 03120AB
Is 03120AB a valid ICD-10-PCS code for 2027?
- Yes. 03120AB is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 03120AB an O.R. procedure?
- Yes. 03120AB is an O.R. procedure in MS-DRG v44.0.
What DRG does 03120AB group to?
- Depending on the principal diagnosis, 03120AB can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.
What is the ICD-9 procedure code for 03120AB?
- The CMS GEMs map 03120AB to ICD-9-CM 39.29 (Other (peripheral) vascular shunt or bypass).