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ICD-10-PCS 2027 procedure code

05164AYBypass Left Subclavian Vein to Upper Vein with Autologous Arterial Tissue, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Bypass L Subclav 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 05164AY

05164AY is the ICD-10-PCS code for a bypass procedure on the left subclavian 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 intrathoracic vascular shunt or bypass, the ICD-9-CM procedure title it maps to (39.23).

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), 05174AY (right axillary vein) and 18 more.

The same procedure with a different approach is coded 05160AY (open).

With a different device, use 051647Y (autologous tissue substitute), 051649Y (autologous venous tissue), 05164JY (synthetic substitute), 05164KY (nonautologous tissue substitute) and 05164ZY (no device).

It is an operating-room procedure in the MS-DRG logic for DRG 270 (Other Major Cardiovascular Procedures with MCC), DRG 271 (Other Major Cardiovascular Procedures with CC), DRG 272 (Other Major Cardiovascular Procedures without CC/MCC), DRG 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC) and DRG 909 (Other O.R. Procedures for Injuries without CC/MCC), under the surgical categories “Other Major Cardiovascular Procedures”, “Other O.R. Procedures for Injuries” and “Other O.R. Procedures for Multiple Significant Trauma”.

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
6Subclavian Vein, Left
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 →
  • 39.23Other intrathoracic 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 05164AY

Is 05164AY a valid ICD-10-PCS code for 2027?

Yes. 05164AY is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 05164AY an O.R. procedure?

Yes. 05164AY is an O.R. procedure in MS-DRG v44.0.

What DRG does 05164AY group to?

Depending on the principal diagnosis, 05164AY can group to MS-DRG 270, MS-DRG 271, MS-DRG 272, MS-DRG 907, MS-DRG 908 and MS-DRG 909.

What is the ICD-9 procedure code for 05164AY?

The CMS GEMs map 05164AY to ICD-9-CM 39.23 (Other intrathoracic vascular shunt or bypass).