Skip to content
Dx

ICD-10-PCS 2027 procedure code

03R00KZReplacement of Right Internal Mammary Artery with Nonautologous Tissue Substitute, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Replacement of R Int Mamm Art with Nonaut Sub, 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 03R00KZ

03R00KZ is the ICD-10-PCS code for a replacement procedure on the right internal mammary artery using an open approach with nonautologous tissue substitute. In ICD-10-PCS, replacement means putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part.

In plain terms, this corresponds to resection of vessel with replacement, thoracic vessels, the ICD-9-CM procedure title it maps to (38.45).

For a different body part, codes include 03R10KZ (left internal mammary artery), 03R20KZ (innominate artery), 03R30KZ (right subclavian artery), 03R40KZ (left subclavian artery), 03R50KZ (right axillary artery), 03R60KZ (left axillary artery) and 23 more.

The same procedure with a different approach is coded 03R04KZ (percutaneous endoscopic).

With a different device, use 03R007Z (autologous tissue substitute) and 03R00JZ (synthetic substitute).

It is an operating-room procedure in the MS-DRG logic for DRG 163 (Major Chest Procedures with MCC), DRG 164 (Major Chest Procedures with CC), DRG 165 (Major Chest Procedures without CC/MCC), DRG 212 (Concomitant Aortic and Mitral Valve Procedures), DRG 216 (Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization with MCC) and DRG 217 (Cardiac Valve and Other Major Cardiothoracic Procedures with Cardiac Catheterization with CC), under the surgical categories “Major Chest Procedures”, “Concomitant Aortic and Mitral Valve Procedures”, “” and 3 more.

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
RReplacement

Putting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part

The body part may have been taken out or replaced, or may be taken out, physically eradicated, or rendered nonfunctional during the Replacement procedure. A Removal procedure is coded for taking out the device used in a previous replacement procedure

Includes: Total hip replacement, bone graft, free skin graft

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
KNonautologous Tissue Substitute

Includes: Acellular Hydrated Dermis; Bone bank bone graft; Cook Biodesign(R) Fistula Plug(s); Cook Biodesign(R) Hernia Graft(s); Cook Biodesign(R) Layered Graft(s); Cook Zenapro(tm) Layered Graft(s); Fish skin; Kerecis(R) (GraftGuide) (MariGen) (SurgiBind) (SurgiClose); MIRODERM(tm) Biologic Wound Matrix; Piscine skin; Tissue bank graft

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 · Concomitant Aortic and Mitral Valve Procedures

ICD-9-CM equivalent

Converter →
  • 38.45Resection of vessel with replacement, thoracic vesselsapproximate

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)
  • No changes since FY2016.

Common questions about 03R00KZ

Is 03R00KZ a valid ICD-10-PCS code for 2027?

Yes. 03R00KZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 03R00KZ an O.R. procedure?

Yes. 03R00KZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 03R00KZ group to?

Depending on the principal diagnosis, 03R00KZ can group to MS-DRG 163, MS-DRG 164, MS-DRG 165, MS-DRG 212, MS-DRG 216 and MS-DRG 217.

What is the ICD-9 procedure code for 03R00KZ?

The CMS GEMs map 03R00KZ to ICD-9-CM 38.45 (Resection of vessel with replacement, thoracic vessels).