ICD-10-PCS 2027 procedure code
05N43ZZRelease Left Innominate Vein, Percutaneous 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 05N43ZZ
05N43ZZ is the ICD-10-PCS code for a release procedure on the left innominate vein using a percutaneous 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 05N03ZZ (azygos vein), 05N13ZZ (hemiazygos vein), 05N33ZZ (right innominate vein), 05N53ZZ (right subclavian vein), 05N63ZZ (left subclavian vein), 05N73ZZ (right axillary vein) and 19 more.
The same procedure with a different approach is coded 05N40ZZ (open) and 05N44ZZ (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
- 5Upper Veins
- 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
- 4Innominate Vein, Left
Includes: Brachiocephalic vein; Inferior thyroid vein
- 5. Approach
- 3Percutaneous
Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach the site of the procedure
- 6. Device
- ZNo Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 05N03ZZAzygos Vein
- 05N13ZZHemiazygos Vein
- 05N33ZZInnominate Vein, Right
- 05N53ZZSubclavian Vein, Right
- 05N63ZZSubclavian Vein, Left
- 05N73ZZAxillary Vein, Right
- 05N83ZZAxillary Vein, Left
- 05N93ZZBrachial Vein, Right
- 05NA3ZZBrachial Vein, Left
- 05NB3ZZBasilic Vein, Right
- 05NC3ZZBasilic Vein, Left
- 05ND3ZZCephalic Vein, Right
Different approach
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 →- 39.91Freeing of 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 05N43ZZ
Is 05N43ZZ a valid ICD-10-PCS code for 2027?
- Yes. 05N43ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 05N43ZZ an O.R. procedure?
- Yes. 05N43ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 05N43ZZ group to?
- Depending on the principal diagnosis, 05N43ZZ can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.
What is the ICD-9 procedure code for 05N43ZZ?
- The CMS GEMs map 05N43ZZ to ICD-9-CM 39.91 (Freeing of vessel).