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ICD-10-PCS 2027 procedure code

02164Z7Bypass Right Atrium to Left Atrium, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Bypass Right Atrium to Left Atrium, Perc Endo Approach

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 02164Z7

02164Z7 is the ICD-10-PCS code for a bypass procedure on the right atrium using a percutaneous endoscopic approach (qualifier: left atrium). 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 repair of heart and pericardium, the ICD-9-CM procedure title it maps to (37.49).

The same procedure with a different approach is coded 02160Z7 (open) and 02163Z7 (percutaneous).

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” and “Other O.R. Procedures for Injuries”.

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
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
6Atrium, Right

Includes: Atrium dextrum cordis; Right auricular appendix; Sinus venosus

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
ZNo Device
7. Qualifier
7Atrium, Left

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.

ICD-9-CM equivalent

Converter →
  • 37.49Other repair of heart and pericardiumapproximate

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 02164Z7

Is 02164Z7 a valid ICD-10-PCS code for 2027?

Yes. 02164Z7 is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 02164Z7 an O.R. procedure?

Yes. 02164Z7 is an O.R. procedure in MS-DRG v44.0.

What DRG does 02164Z7 group to?

Depending on the principal diagnosis, 02164Z7 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 02164Z7?

The CMS GEMs map 02164Z7 to ICD-9-CM 37.49 (Other repair of heart and pericardium).