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ICD-10-PCS 2027 procedure code

02BW4ZXExcision of Thoracic Aorta, Descending, Percutaneous Endoscopic Approach, Diagnostic

✓ Valid for 2027O.R. procedure

Short description: Excision of Thor Aorta Desc, Perc Endo Approach, Diagn

Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 02BW4ZX

02BW4ZX is the ICD-10-PCS code for a excision procedure on the thoracic aorta, descending using a percutaneous endoscopic approach (qualifier: diagnostic). In ICD-10-PCS, excision means cutting out or off, without replacement, a portion of a body part.

In plain terms, this corresponds to biopsy of blood vessel, the ICD-9-CM procedure title it maps to (38.21).

For a different body part, codes include 02B44ZX (coronary vein), 02B54ZX (atrial septum), 02B64ZX (right atrium), 02B74ZX (left atrium), 02B84ZX (conduction mechanism), 02B94ZX (chordae tendineae) and 16 more.

The same procedure with a different approach is coded 02BW0ZX (open) and 02BW3ZX (percutaneous).

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
2Heart and Great Vessels
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
WThoracic Aorta, Descending
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
XDiagnostic

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 →
  • 38.21Biopsy of blood 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)
  • FY2017 (effective 10/1/2016): Title revised — was “Excision of Thoracic Aorta, Percutaneous Endoscopic Approach, Diagnostic”

Common questions about 02BW4ZX

Is 02BW4ZX a valid ICD-10-PCS code for 2027?

Yes. 02BW4ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 02BW4ZX an O.R. procedure?

Yes. 02BW4ZX is an O.R. procedure in MS-DRG v44.0.

What DRG does 02BW4ZX group to?

Depending on the principal diagnosis, 02BW4ZX can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.

What is the ICD-9 procedure code for 02BW4ZX?

The CMS GEMs map 02BW4ZX to ICD-9-CM 38.21 (Biopsy of blood vessel).