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ICD-10-PCS 2027 procedure code

02HW4YZInsertion of Other Device into Thoracic Aorta, Descending, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Insert of Oth Dev into Thor Aorta Desc, Perc Endo Approach

Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 02HW4YZ

02HW4YZ is the ICD-10-PCS code for a insertion procedure on the thoracic aorta, descending using a percutaneous endoscopic approach with other device. In ICD-10-PCS, insertion means putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part.

In plain terms, this corresponds to other operations on vessels, the ICD-9-CM procedure title it maps to (39.99).

For a different body part, codes include 02H04YZ (coronary artery, one artery), 02H14YZ (coronary artery, two arteries), 02H24YZ (coronary artery, three arteries), 02H34YZ (coronary artery, four or more arteries), 02H44YZ (coronary vein), 02H64YZ (right atrium) and 11 more.

The same procedure with a different approach is coded 02HW0YZ (open) and 02HW3YZ (percutaneous).

With a different device, use 02HW40Z (monitoring device, pressure sensor), 02HW42Z (monitoring device), 02HW43Z (infusion device) and 02HW4DZ (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) and DRG 272 (Other Major Cardiovascular Procedures without CC/MCC), under the surgical category “Other Major Cardiovascular Procedures”.

It was added in FY2018, effective October 1, 2017.

What each character means

1. Section
0Medical and Surgical
2. Body System
2Heart and Great Vessels
3. Operation
HInsertion

Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part

Includes: Insertion of radioactive implant, insertion of central venous catheter

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
YOther Device

Includes: Alfapump(R) system

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 →
  • 39.99Other operations on 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
  • FY2018 (effective 10/1/2017): Added
  • No changes since FY2018.

Common questions about 02HW4YZ

Is 02HW4YZ a valid ICD-10-PCS code for 2027?

Yes. 02HW4YZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 02HW4YZ an O.R. procedure?

Yes. 02HW4YZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 02HW4YZ group to?

Depending on the principal diagnosis, 02HW4YZ can group to MS-DRG 270, MS-DRG 271 and MS-DRG 272.

What is the ICD-9 procedure code for 02HW4YZ?

The CMS GEMs map 02HW4YZ to ICD-9-CM 39.99 (Other operations on vessels).