ICD-10-PCS 2027 procedure code
02N40ZZRelease Coronary Vein, Open 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 02N40ZZ
02N40ZZ is the ICD-10-PCS code for a release procedure on the coronary vein using an open approach. In ICD-10-PCS, release means freeing a body part from an abnormal physical constraint by cutting or by the use of force.
In plain terms, this corresponds to other repair of heart and pericardium, the ICD-9-CM procedure title it maps to (37.49).
For a different body part, codes include 02N00ZZ (coronary artery, one artery), 02N10ZZ (coronary artery, two arteries), 02N20ZZ (coronary artery, three arteries), 02N30ZZ (coronary artery, four or more arteries), 02N50ZZ (atrial septum), 02N60ZZ (right atrium) and 20 more.
The same procedure with a different approach is coded 02N43ZZ (percutaneous) and 02N44ZZ (percutaneous endoscopic).
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
- NRelease
Freeing a body part from an abnormal physical constraint by cutting or by the use of force
Some of the restraining tissue may be taken out but none of the body part is taken out
Includes: Adhesiolysis, carpal tunnel release
- 4. Body Part
- 4Coronary Vein
- 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
Different body part
- 02N00ZZCoronary Artery, One Artery
- 02N10ZZCoronary Artery, Two Arteries
- 02N20ZZCoronary Artery, Three Arteries
- 02N30ZZCoronary Artery, Four or More Arteries
- 02N50ZZAtrial Septum
- 02N60ZZAtrium, Right
- 02N70ZZAtrium, Left
- 02N80ZZConduction Mechanism
- 02N90ZZChordae Tendineae
- 02ND0ZZPapillary Muscle
- 02NF0ZZAortic Valve
- 02NG0ZZMitral Valve
Different approach
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 Major Cardiovascular Procedures
MDC 21 · Injuries, Poisonings and Toxic Effects of Drugs · Other O.R. Procedures for Injuries
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
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about 02N40ZZ
Is 02N40ZZ a valid ICD-10-PCS code for 2027?
- Yes. 02N40ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 02N40ZZ an O.R. procedure?
- Yes. 02N40ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 02N40ZZ group to?
- Depending on the principal diagnosis, 02N40ZZ 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 02N40ZZ?
- The CMS GEMs map 02N40ZZ to ICD-9-CM 37.49 (Other repair of heart and pericardium).