ICD-10-PCS 2027 procedure code
03B10ZXExcision of Left Internal Mammary Artery, Open Approach, Diagnostic
Short description: Excision of L Int Mamm Art, Open Approach, Diagn
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 03B10ZX
03B10ZX is the ICD-10-PCS code for a excision procedure on the left internal mammary artery using an open approach (qualifier: diagnostic). In ICD-10-PCS, excision means cutting out or off, without replacement, a portion of a body part.
In plain terms, this corresponds to biopsy of blood vessel, the ICD-9-CM procedure title it maps to (38.21).
For a different body part, codes include 03B00ZX (right internal mammary artery), 03B20ZX (innominate artery), 03B30ZX (right subclavian artery), 03B40ZX (left subclavian artery), 03B50ZX (right axillary artery), 03B60ZX (left axillary artery) and 23 more.
The same procedure with a different approach is coded 03B13ZX (percutaneous) and 03B14ZX (percutaneous endoscopic).
It is an operating-room procedure in the MS-DRG logic for DRG 252 (Other Vascular Procedures with MCC), DRG 253 (Other Vascular Procedures with CC) and DRG 254 (Other Vascular Procedures without CC/MCC), under the surgical category “Other Vascular 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
- 3Upper Arteries
- 3. Operation
- BExcision
Cutting out or off, without replacement, a portion of a body part
The qualifier DIAGNOSTIC is used to identify excision procedures that are biopsies
Includes: Partial nephrectomy, liver biopsy
- 4. Body Part
- 1Internal Mammary Artery, Left
Includes: Anterior intercostal artery; Internal thoracic artery; Musculophrenic artery; Pericardiophrenic artery; Superior epigastric artery
- 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
- XDiagnostic
Other versions of this procedure
Different body part
- 03B00ZXInternal Mammary Artery, Right
- 03B20ZXInnominate Artery
- 03B30ZXSubclavian Artery, Right
- 03B40ZXSubclavian Artery, Left
- 03B50ZXAxillary Artery, Right
- 03B60ZXAxillary Artery, Left
- 03B70ZXBrachial Artery, Right
- 03B80ZXBrachial Artery, Left
- 03B90ZXUlnar Artery, Right
- 03BA0ZXUlnar Artery, Left
- 03BB0ZXRadial Artery, Right
- 03BC0ZXRadial Artery, Left
Different approach
Different qualifier
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 Vascular Procedures
ICD-9-CM equivalent
Converter →- 38.21Biopsy of blood vesselapproximate
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 03B10ZX
Is 03B10ZX a valid ICD-10-PCS code for 2027?
- Yes. 03B10ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 03B10ZX an O.R. procedure?
- Yes. 03B10ZX is an O.R. procedure in MS-DRG v44.0.
What DRG does 03B10ZX group to?
- Depending on the principal diagnosis, 03B10ZX can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.
What is the ICD-9 procedure code for 03B10ZX?
- The CMS GEMs map 03B10ZX to ICD-9-CM 38.21 (Biopsy of blood vessel).