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ICD-10-PCS 2027 procedure code

04NY0ZZRelease Lower Artery, Open Approach

✓ Valid for 2027O.R. procedure

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 04NY0ZZ

04NY0ZZ is the ICD-10-PCS code for a release procedure on the lower artery using an open approach. In ICD-10-PCS, release means freeing a body part from an abnormal physical constraint by cutting or by the use of force.

In plain terms, this corresponds to Freeing of vessel, the ICD-9-CM procedure title it maps to (39.91).

For a different body part, codes include 04N00ZZ (abdominal aorta), 04N10ZZ (celiac artery), 04N20ZZ (gastric artery), 04N30ZZ (hepatic artery), 04N40ZZ (splenic artery), 04N50ZZ (superior mesenteric artery) and 24 more.

The same procedure with a different approach is coded 04NY3ZZ (percutaneous) and 04NY4ZZ (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
4Lower Arteries
3. Operation
NRelease

Freeing a body part from an abnormal physical constraint by cutting or by the use of force

Some of the restraining tissue may be taken out but none of the body part is taken out

Includes: Adhesiolysis, carpal tunnel release

4. Body Part
YLower Artery

Includes: Umbilical 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
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 →
  • 39.91Freeing of vesselapproximate

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 04NY0ZZ

Is 04NY0ZZ a valid ICD-10-PCS code for 2027?

Yes. 04NY0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 04NY0ZZ an O.R. procedure?

Yes. 04NY0ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 04NY0ZZ group to?

Depending on the principal diagnosis, 04NY0ZZ can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.

What is the ICD-9 procedure code for 04NY0ZZ?

The CMS GEMs map 04NY0ZZ to ICD-9-CM 39.91 (Freeing of vessel).