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ICD-10-PCS 2027 procedure code

03U10KZSupplement Left Internal Mammary Artery with Nonautologous Tissue Substitute, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Supplement L 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 03U10KZ

03U10KZ is the ICD-10-PCS code for a supplement procedure on the left internal mammary artery using an open approach with nonautologous tissue substitute. In ICD-10-PCS, supplement means putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part.

In plain terms, this corresponds to repair of blood vessel with unspecified type of patch graft, the ICD-9-CM procedure title it maps to (39.58).

For a different body part, codes include 03U00KZ (right internal mammary artery), 03U20KZ (innominate artery), 03U30KZ (right subclavian artery), 03U40KZ (left subclavian artery), 03U50KZ (right axillary artery), 03U60KZ (left axillary artery) and 23 more.

The same procedure with a different approach is coded 03U13KZ (percutaneous) and 03U14KZ (percutaneous endoscopic).

With a different device, use 03U107Z (autologous tissue substitute) and 03U10JZ (synthetic substitute).

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
USupplement

Putting in or on biological or synthetic material that physically reinforces and/or augments the function of a portion of a body part

The biological material is non-living, or is living and from the same individual. The body part may have been previously replaced, and the Supplement procedure is performed to physically reinforce and/or augment the function of the replaced body part

Includes: Herniorrhaphy using mesh, mitral valve ring annuloplasty, put a new acetabular liner in a previous hip replacement

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
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.

ICD-9-CM equivalent

Converter →
  • 39.58Repair of blood vessel with unspecified type of patch graftapproximate

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 03U10KZ

Is 03U10KZ a valid ICD-10-PCS code for 2027?

Yes. 03U10KZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 03U10KZ an O.R. procedure?

Yes. 03U10KZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 03U10KZ group to?

Depending on the principal diagnosis, 03U10KZ can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.

What is the ICD-9 procedure code for 03U10KZ?

The CMS GEMs map 03U10KZ to ICD-9-CM 39.58 (Repair of blood vessel with unspecified type of patch graft).