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ICD-10-PCS 2027 procedure code

051F4AYBypass Left Cephalic Vein to Upper Vein with Autologous Arterial Tissue, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Bypass L Cephalic Vein to Up Vein w Autol Art, Perc Endo

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 051F4AY

051F4AY is the ICD-10-PCS code for a bypass procedure on the left cephalic vein using a percutaneous endoscopic approach with autologous arterial tissue (qualifier: upper 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 05104AY (azygos vein), 05114AY (hemiazygos vein), 05134AY (right innominate vein), 05144AY (left innominate vein), 05154AY (right subclavian vein), 05164AY (left subclavian vein) and 18 more.

The same procedure with a different approach is coded 051F0AY (open).

With a different device, use 051F47Y (autologous tissue substitute), 051F49Y (autologous venous tissue), 051F4JY (synthetic substitute), 051F4KY (nonautologous tissue substitute) and 051F4ZY (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
5Upper Veins
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
FCephalic Vein, Left

Includes: Accessory cephalic vein

5. Approach
4Percutaneous Endoscopic

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach and visualize the site of the procedure

6. Device
AAutologous Arterial Tissue
7. Qualifier
YUpper Vein

Other versions of this procedure

Different approach

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

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 051F4AY

Is 051F4AY a valid ICD-10-PCS code for 2027?

Yes. 051F4AY is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 051F4AY an O.R. procedure?

Yes. 051F4AY is an O.R. procedure in MS-DRG v44.0.

What DRG does 051F4AY group to?

Depending on the principal diagnosis, 051F4AY can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.

What is the ICD-9 procedure code for 051F4AY?

The CMS GEMs map 051F4AY to ICD-9-CM 39.29 (Other (peripheral) vascular shunt or bypass).