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ICD-10-PCS 2027 procedure code

02Q20ZZRepair Coronary Artery, Three Arteries, Open Approach

✓ Valid for 2027O.R. procedure

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 02Q20ZZ

02Q20ZZ is the ICD-10-PCS code for a repair procedure on the coronary artery, three arteries using an open approach. In ICD-10-PCS, repair means restoring, to the extent possible, a body part to its normal anatomic structure and function.

In plain terms, this corresponds to repair of aneurysm of coronary vessel and other operations on vessels of heart, the ICD-9-CM procedure titles it maps to (36.91 and 36.99).

For a different body part, codes include 02Q00ZZ (coronary artery, one artery), 02Q10ZZ (coronary artery, two arteries), 02Q30ZZ (coronary artery, four or more arteries), 02Q40ZZ (coronary vein), 02Q50ZZ (atrial septum), 02Q60ZZ (right atrium) and 23 more.

The same procedure with a different approach is coded 02Q23ZZ (percutaneous) and 02Q24ZZ (percutaneous endoscopic).

It is an operating-room procedure in the MS-DRG logic for DRG 228 (Other Cardiothoracic Procedures with MCC) and DRG 229 (Other Cardiothoracic Procedures without MCC), under the surgical category “Other Cardiothoracic 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
2Heart and Great Vessels
3. Operation
QRepair

Restoring, to the extent possible, a body part to its normal anatomic structure and function

Used only when the method to accomplish the repair is not one of the other root operations

Includes: Colostomy takedown, suture of laceration

4. Body Part
2Coronary Artery, Three Arteries
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
ZNo Device
7. Qualifier
ZNo Qualifier

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.

MDC 05 · Diseases and Disorders of the Circulatory System · Other Cardiothoracic Procedures

ICD-9-CM equivalent

Converter →
  • 36.91Repair of aneurysm of coronary vesselapproximate
  • 36.99Other operations on vessels of heartapproximate

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)
  • FY2017 (effective 10/1/2016): Title revised — was “Repair Coronary Artery, Three Sites, Open Approach”

Common questions about 02Q20ZZ

Is 02Q20ZZ a valid ICD-10-PCS code for 2027?

Yes. 02Q20ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 02Q20ZZ an O.R. procedure?

Yes. 02Q20ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 02Q20ZZ group to?

Depending on the principal diagnosis, 02Q20ZZ can group to MS-DRG 228 and MS-DRG 229.

What is the ICD-9 procedure code for 02Q20ZZ?

The CMS GEMs map 02Q20ZZ to ICD-9-CM 36.91 (Repair of aneurysm of coronary vessel) and 36.99 (Other operations on vessels of heart).