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ICD-10-PCS 2027 procedure code

031A0AFBypass Left Ulnar Artery to Lower Arm Vein with Autologous Arterial Tissue, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Bypass L Ulnar Art to Low Arm Vein 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 031A0AF

031A0AF is the ICD-10-PCS code for a bypass procedure on the left ulnar artery using an open approach with autologous arterial tissue (qualifier: lower arm vein). 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 03120AF (innominate artery), 03130AF (right subclavian artery), 03140AF (left subclavian artery), 03150AF (right axillary artery), 03160AF (left axillary artery), 03170AF (right brachial artery) and 4 more.

With a different device, use 031A09F (autologous venous tissue), 031A0JF (synthetic substitute), 031A0KF (nonautologous tissue substitute) and 031A0ZF (no device).

It is an operating-room procedure in the MS-DRG logic for DRG 361 (Other Circulatory System O.R. Procedures with MCC), DRG 362 (Other Circulatory System O.R. Procedures without MCC), DRG 628 (Other Endocrine, Nutritional and Metabolic O.R. Procedures with MCC or Insertion of Antibiotic-eluting Bone Void Filler), DRG 629 (Other Endocrine, Nutritional and Metabolic O.R. Procedures with CC), DRG 630 (Other Endocrine, Nutritional and Metabolic O.R. Procedures without CC/MCC) and DRG 673 (Other Kidney and Urinary Tract Procedures with MCC), under the surgical categories “Other Circulatory System O.R. Procedures”, “Other Endocrine, Nutritional and Metabolic O.R. Procedures”, “Other Kidney and Urinary Tract Procedures” and 2 more.

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
AUlnar Artery, Left

Includes: Anterior ulnar recurrent artery; Common interosseous artery; Posterior ulnar recurrent artery

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
FLower Arm Vein

Other versions of this procedure

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 Circulatory System O.R. 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

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about 031A0AF

Is 031A0AF a valid ICD-10-PCS code for 2027?

Yes. 031A0AF is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 031A0AF an O.R. procedure?

Yes. 031A0AF is an O.R. procedure in MS-DRG v44.0.

What DRG does 031A0AF group to?

Depending on the principal diagnosis, 031A0AF can group to MS-DRG 361, MS-DRG 362, MS-DRG 628, MS-DRG 629, MS-DRG 630 and MS-DRG 673.

What is the ICD-9 procedure code for 031A0AF?

The CMS GEMs map 031A0AF to ICD-9-CM 39.29 (Other (peripheral) vascular shunt or bypass).