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ICD-10-PCS 2027 procedure code

02170ATBypass Left Atrium to Left Pulmonary Vein with Autologous Arterial Tissue, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Bypass L Atrium to L Pulm Vn with Autol Art, Open Approach

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 02170AT

02170AT is the ICD-10-PCS code for a bypass procedure on the left atrium using an open approach with autologous arterial tissue (qualifier: left pulmonary 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 total repair of total anomalous pulmonary venous connection, the ICD-9-CM procedure title it maps to (35.82).

For a different body part, codes include 021V0AT (superior vena cava).

The same procedure with a different approach is coded 02174AT (percutaneous endoscopic).

With a different device, use 021708T (zooplastic tissue), 021709T (autologous venous tissue), 02170JT (synthetic substitute), 02170KT (nonautologous tissue substitute) and 02170ZT (no device).

It is an operating-room procedure in the MS-DRG logic for DRG 228 (Other Cardiothoracic Procedures with MCC), DRG 229 (Other Cardiothoracic Procedures without MCC), DRG 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC), DRG 909 (Other O.R. Procedures for Injuries without CC/MCC) and DRG 957 (Other O.R. Procedures for Multiple Significant Trauma with MCC), under the surgical categories “Other Cardiothoracic Procedures”, “Other O.R. Procedures for Injuries” and “Other O.R. Procedures for Multiple Significant Trauma”.

It was added in FY2017, effective October 1, 2016.

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
7Atrium, Left

Includes: Atrium pulmonale; Left auricular appendix

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
TPulmonary Vein, Left

Other versions of this procedure

Different body part

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 Cardiothoracic Procedures

ICD-9-CM equivalent

Converter →
  • 35.82Total repair of total anomalous pulmonary venous connectionapproximate

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
  • FY2017 (effective 10/1/2016): Added
  • No changes since FY2017.

Common questions about 02170AT

Is 02170AT a valid ICD-10-PCS code for 2027?

Yes. 02170AT is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 02170AT an O.R. procedure?

Yes. 02170AT is an O.R. procedure in MS-DRG v44.0.

What DRG does 02170AT group to?

Depending on the principal diagnosis, 02170AT can group to MS-DRG 228, MS-DRG 229, MS-DRG 907, MS-DRG 908, MS-DRG 909 and MS-DRG 957.

What is the ICD-9 procedure code for 02170AT?

The CMS GEMs map 02170AT to ICD-9-CM 35.82 (Total repair of total anomalous pulmonary venous connection).