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ICD-10-PCS 2027 procedure code

02HW42ZInsertion of Monitoring Device into Thoracic Aorta, Descending, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Insert Monitor Dev in Thor Aorta Desc, Perc Endo

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 02HW42Z

02HW42Z is the ICD-10-PCS code for a insertion procedure on the thoracic aorta, descending using a percutaneous endoscopic approach with monitoring 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 incision of vessel, other thoracic vessels, the ICD-9-CM procedure title it maps to (38.05).

For a different body part, codes include 02H442Z (coronary vein), 02H642Z (right atrium), 02H742Z (left atrium), 02HK42Z (right ventricle), 02HL42Z (left ventricle), 02HN42Z (pericardium) and 7 more.

The same procedure with a different approach is coded 02HW02Z (open) and 02HW32Z (percutaneous).

With a different device, use 02HW40Z (monitoring device, pressure sensor), 02HW43Z (infusion device), 02HW4DZ (intraluminal device) and 02HW4YZ (other 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 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
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
2Monitoring Device

Includes: Blood glucose monitoring system; Cardiac event recorder; Continuous Glucose Monitoring (CGM) device; Implantable glucose monitoring device; Loop recorder, implantable; Reveal (LINQ)(DX)(XT)

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 →
  • 38.05Incision of vessel, other 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)
  • FY2017 (effective 10/1/2016): Title revised — was “Insertion of Monitoring Device into Thoracic Aorta, Percutaneous Endoscopic Approach”

Common questions about 02HW42Z

Is 02HW42Z a valid ICD-10-PCS code for 2027?

Yes. 02HW42Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 02HW42Z an O.R. procedure?

Yes. 02HW42Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 02HW42Z group to?

Depending on the principal diagnosis, 02HW42Z can group to MS-DRG 270, MS-DRG 271 and MS-DRG 272.

What is the ICD-9 procedure code for 02HW42Z?

The CMS GEMs map 02HW42Z to ICD-9-CM 38.05 (Incision of vessel, other thoracic vessels).