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ICD-10-PCS 2027 procedure code

05B04ZZExcision of Azygos Vein, Percutaneous Endoscopic 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 05B04ZZ

05B04ZZ is the ICD-10-PCS code for a excision procedure on the azygos vein using a percutaneous endoscopic approach. In ICD-10-PCS, excision means cutting out or off, without replacement, a portion of a body part.

In plain terms, this corresponds to resection of vessel with anastomosis, other thoracic vessels and other excision of vessels, thoracic vessels, the ICD-9-CM procedure titles it maps to (38.35 and 38.65).

For a different body part, codes include 05B14ZZ (hemiazygos vein), 05B34ZZ (right innominate vein), 05B44ZZ (left innominate vein), 05B54ZZ (right subclavian vein), 05B64ZZ (left subclavian vein), 05B74ZZ (right axillary vein) and 19 more.

The same procedure with a different approach is coded 05B00ZZ (open) and 05B03ZZ (percutaneous).

It is an operating-room procedure in the MS-DRG logic for DRG 163 (Major Chest Procedures with MCC), DRG 164 (Major Chest Procedures with CC), DRG 165 (Major Chest Procedures without CC/MCC), DRG 270 (Other Major Cardiovascular Procedures with MCC), DRG 271 (Other Major Cardiovascular Procedures with CC) and DRG 272 (Other Major Cardiovascular Procedures without CC/MCC), under the surgical categories “Major Chest Procedures” and “Other Major Cardiovascular 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
BExcision

Cutting out or off, without replacement, a portion of a body part

The qualifier DIAGNOSTIC is used to identify excision procedures that are biopsies

Includes: Partial nephrectomy, liver biopsy

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 qualifier

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 →
  • 38.35Resection of vessel with anastomosis, other thoracic vesselsapproximate
  • 38.65Other excision of vessels, thoracic vesselsapproximate

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 05B04ZZ

Is 05B04ZZ a valid ICD-10-PCS code for 2027?

Yes. 05B04ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 05B04ZZ an O.R. procedure?

Yes. 05B04ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 05B04ZZ group to?

Depending on the principal diagnosis, 05B04ZZ can group to MS-DRG 163, MS-DRG 164, MS-DRG 165, MS-DRG 270, MS-DRG 271 and MS-DRG 272.

What is the ICD-9 procedure code for 05B04ZZ?

The CMS GEMs map 05B04ZZ to ICD-9-CM 38.35 (Resection of vessel with anastomosis, other thoracic vessels) and 38.65 (Other excision of vessels, thoracic vessels).