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ICD-10-PCS 2027 procedure code

04100KBBypass Abdominal Aorta to Left Internal Iliac Artery with Nonautologous Tissue Substitute, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Bypass Abd Aorta to L Int Ilia w Nonaut Sub, Open

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 04100KB

04100KB is the ICD-10-PCS code for a bypass procedure on the abdominal aorta using an open approach with nonautologous tissue substitute (qualifier: left internal iliac artery). In ICD-10-PCS, bypass means altering the route of passage of the contents of a tubular body part.

In plain terms, this corresponds to Aorta-iliac-femoral bypass, the ICD-9-CM procedure title it maps to (39.25).

For a different body part, codes include 041C0KB (right common iliac artery), 041D0KB (left common iliac artery), 041E0KB (right internal iliac artery), 041F0KB (left internal iliac artery), 041H0KB (right external iliac artery) and 041J0KB (left external iliac artery).

The same procedure with a different approach is coded 04104KB (percutaneous endoscopic).

With a different device, use 041009B (autologous venous tissue), 04100AB (autologous arterial tissue), 04100JB (synthetic substitute) and 04100ZB (no 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 579 (Other Skin, Subcutaneous Tissue and Breast Procedures with MCC), DRG 580 (Other Skin, Subcutaneous Tissue and Breast Procedures with CC) and DRG 581 (Other Skin, Subcutaneous Tissue and Breast Procedures without CC/MCC), under the surgical categories “Other Major Cardiovascular Procedures”, “Other Skin, Subcutaneous Tissue and Breast 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
4Lower Arteries
3. Operation
1Bypass

Altering the route of passage of the contents of a tubular body part

Rerouting contents of a body part to a downstream area of the normal route, to a similar route and body part, or to an abnormal route and dissimilar body part. Includes one or more anastomoses, with or without the use of a device

Includes: Coronary artery bypass, colostomy formation

4. Body Part
0Abdominal Aorta

Includes: Inferior phrenic artery; Lumbar artery; Median sacral artery; Middle suprarenal artery; Ovarian artery; Testicular 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
BInternal Iliac Artery, Left

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 →
  • 39.25Aorta-iliac-femoral bypassapproximate

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 04100KB

Is 04100KB a valid ICD-10-PCS code for 2027?

Yes. 04100KB is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 04100KB an O.R. procedure?

Yes. 04100KB is an O.R. procedure in MS-DRG v44.0.

What DRG does 04100KB group to?

Depending on the principal diagnosis, 04100KB can group to MS-DRG 270, MS-DRG 271, MS-DRG 272, MS-DRG 579, MS-DRG 580 and MS-DRG 581.

What is the ICD-9 procedure code for 04100KB?

The CMS GEMs map 04100KB to ICD-9-CM 39.25 (Aorta-iliac-femoral bypass).