ICD-10-PCS 2027 procedure code
03B04ZXExcision of Right Internal Mammary Artery, Percutaneous Endoscopic Approach, Diagnostic
Short description: Excision of R Int Mamm Art, Perc Endo 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 03B04ZX
03B04ZX is the ICD-10-PCS code for a excision procedure on the right internal mammary artery using a percutaneous endoscopic 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 03B14ZX (left internal mammary artery), 03B24ZX (innominate artery), 03B34ZX (right subclavian artery), 03B44ZX (left subclavian artery), 03B54ZX (right axillary artery), 03B64ZX (left axillary artery) and 23 more.
The same procedure with a different approach is coded 03B00ZX (open) and 03B03ZX (percutaneous).
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
- 0Internal Mammary Artery, Right
- 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
- XDiagnostic
Other versions of this procedure
Different body part
- 03B14ZXInternal Mammary Artery, Left
- 03B24ZXInnominate Artery
- 03B34ZXSubclavian Artery, Right
- 03B44ZXSubclavian Artery, Left
- 03B54ZXAxillary Artery, Right
- 03B64ZXAxillary Artery, Left
- 03B74ZXBrachial Artery, Right
- 03B84ZXBrachial Artery, Left
- 03B94ZXUlnar Artery, Right
- 03BA4ZXUlnar Artery, Left
- 03BB4ZXRadial Artery, Right
- 03BC4ZXRadial 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 03B04ZX
Is 03B04ZX a valid ICD-10-PCS code for 2027?
- Yes. 03B04ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 03B04ZX an O.R. procedure?
- Yes. 03B04ZX is an O.R. procedure in MS-DRG v44.0.
What DRG does 03B04ZX group to?
- Depending on the principal diagnosis, 03B04ZX can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.
What is the ICD-9 procedure code for 03B04ZX?
- The CMS GEMs map 03B04ZX to ICD-9-CM 38.21 (Biopsy of blood vessel).