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ICD-10-PCS 2027 procedure code

021W09FBypass Thoracic Aorta, Descending to Abdominal Artery with Autologous Venous Tissue, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Bypass Thor Aorta Desc to Abd Art w Autol Vn, Open

Code last changed in FY2019 (effective October 1, 2018). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 021W09F

021W09F is the ICD-10-PCS code for a bypass procedure on the thoracic aorta, descending using an open approach with autologous venous tissue (qualifier: abdominal artery). In ICD-10-PCS, bypass means altering the route of passage of the contents of a tubular body part.

For a different body part, codes include 021009F (coronary artery, one artery), 021109F (coronary artery, two arteries), 021209F (coronary artery, three arteries) and 021309F (coronary artery, four or more arteries).

With a different device, use 021W08F (zooplastic tissue), 021W0AF (autologous arterial tissue), 021W0JF (synthetic substitute) and 021W0KF (nonautologous tissue substitute).

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) and DRG 272 (Other Major Cardiovascular Procedures without CC/MCC), under the surgical category “Other Major Cardiovascular Procedures”.

It was added in FY2019, effective October 1, 2018.

What each character means

1. Section
0Medical and Surgical
2. Body System
2Heart and Great Vessels
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
WThoracic Aorta, Descending
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
9Autologous Venous Tissue
7. Qualifier
FAbdominal Artery

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.

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
  • FY2019 (effective 10/1/2018): Added
  • No changes since FY2019.

Common questions about 021W09F

Is 021W09F a valid ICD-10-PCS code for 2027?

Yes. 021W09F is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 021W09F an O.R. procedure?

Yes. 021W09F is an O.R. procedure in MS-DRG v44.0.

What DRG does 021W09F group to?

Depending on the principal diagnosis, 021W09F can group to MS-DRG 270, MS-DRG 271 and MS-DRG 272.