ICD-10-PCS 2027 procedure code
05L04ZZOcclusion of Azygos Vein, Percutaneous Endoscopic 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 05L04ZZ
05L04ZZ is the ICD-10-PCS code for a occlusion procedure on the azygos vein using a percutaneous endoscopic approach. In ICD-10-PCS, occlusion means completely closing an orifice or the lumen of a tubular body part.
In plain terms, this corresponds to other surgical occlusion of vessels, thoracic vessels, the ICD-9-CM procedure title it maps to (38.85).
For a different body part, codes include 05L14ZZ (hemiazygos vein), 05L34ZZ (right innominate vein), 05L44ZZ (left innominate vein), 05L54ZZ (right subclavian vein), 05L64ZZ (left subclavian vein), 05L74ZZ (right axillary vein) and 19 more.
The same procedure with a different approach is coded 05L00ZZ (open) and 05L03ZZ (percutaneous).
With a different device, use 05L04CZ (extraluminal device) and 05L04DZ (intraluminal 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 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC) and DRG 909 (Other O.R. Procedures for Injuries without CC/MCC), under the surgical categories “Other Major Cardiovascular 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
- 5Upper Veins
- 3. Operation
- LOcclusion
Completely closing an orifice or the lumen of a tubular body part
The orifice can be a natural orifice or an artificially created orifice
Includes: Fallopian tube ligation, ligation of inferior vena cava
- 4. Body Part
- 0Azygos Vein
Includes: Right ascending lumbar vein; Right subcostal vein
- 5. Approach
- 4Percutaneous Endoscopic
Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach and visualize the site of the procedure
- 6. Device
- ZNo Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 05L14ZZHemiazygos Vein
- 05L34ZZInnominate Vein, Right
- 05L44ZZInnominate Vein, Left
- 05L54ZZSubclavian Vein, Right
- 05L64ZZSubclavian Vein, Left
- 05L74ZZAxillary Vein, Right
- 05L84ZZAxillary Vein, Left
- 05L94ZZBrachial Vein, Right
- 05LA4ZZBrachial Vein, Left
- 05LB4ZZBasilic Vein, Right
- 05LC4ZZBasilic Vein, Left
- 05LD4ZZCephalic Vein, Right
Different approach
Different device
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 Major Cardiovascular Procedures
MDC 21 · Injuries, Poisonings and Toxic Effects of Drugs · Other O.R. Procedures for Injuries
ICD-9-CM equivalent
Converter →- 38.85Other surgical occlusion of vessels, thoracic vesselsapproximate
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 05L04ZZ
Is 05L04ZZ a valid ICD-10-PCS code for 2027?
- Yes. 05L04ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 05L04ZZ an O.R. procedure?
- Yes. 05L04ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 05L04ZZ group to?
- Depending on the principal diagnosis, 05L04ZZ can group to MS-DRG 270, MS-DRG 271, MS-DRG 272, MS-DRG 907, MS-DRG 908 and MS-DRG 909.
What is the ICD-9 procedure code for 05L04ZZ?
- The CMS GEMs map 05L04ZZ to ICD-9-CM 38.85 (Other surgical occlusion of vessels, thoracic vessels).