ICD-10-PCS 2027 procedure code
03L00ZZOcclusion of Right Internal Mammary Artery, 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 03L00ZZ
03L00ZZ is the ICD-10-PCS code for a occlusion procedure on the right internal mammary artery using an open approach. In ICD-10-PCS, occlusion means completely closing an orifice or the lumen of a tubular body part.
In plain terms, this corresponds to other surgical occlusion of vessels, thoracic vessels, the ICD-9-CM procedure title it maps to (38.85).
For a different body part, codes include 03L10ZZ (left internal mammary artery), 03L20ZZ (innominate artery), 03L30ZZ (right subclavian artery), 03L40ZZ (left subclavian artery), 03L50ZZ (right axillary artery), 03L60ZZ (left axillary artery) and 23 more.
The same procedure with a different approach is coded 03L03ZZ (percutaneous) and 03L04ZZ (percutaneous endoscopic).
With a different device, use 03L00CZ (extraluminal device) and 03L00DZ (intraluminal device).
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
- 3Upper Arteries
- 3. Operation
- LOcclusion
Completely closing an orifice or the lumen of a tubular body part
The orifice can be a natural orifice or an artificially created orifice
Includes: Fallopian tube ligation, ligation of inferior vena cava
- 4. Body Part
- 0Internal Mammary Artery, Right
- 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
- 03L10ZZInternal Mammary Artery, Left
- 03L20ZZInnominate Artery
- 03L30ZZSubclavian Artery, Right
- 03L40ZZSubclavian Artery, Left
- 03L50ZZAxillary Artery, Right
- 03L60ZZAxillary Artery, Left
- 03L70ZZBrachial Artery, Right
- 03L80ZZBrachial Artery, Left
- 03L90ZZUlnar Artery, Right
- 03LA0ZZUlnar Artery, Left
- 03LB0ZZRadial Artery, Right
- 03LC0ZZRadial Artery, Left
Different approach
Different device
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 →- 38.85Other surgical occlusion of vessels, thoracic vesselsapproximate
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 03L00ZZ
Is 03L00ZZ a valid ICD-10-PCS code for 2027?
- Yes. 03L00ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 03L00ZZ an O.R. procedure?
- Yes. 03L00ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 03L00ZZ group to?
- Depending on the principal diagnosis, 03L00ZZ 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 03L00ZZ?
- The CMS GEMs map 03L00ZZ to ICD-9-CM 38.85 (Other surgical occlusion of vessels, thoracic vessels).