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ICD-10-PCS 2027 procedure code

03WY42ZRevision of Monitoring Device in Upper Artery, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Revision of Monitoring Device in Up Art, Perc Endo 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 03WY42Z

03WY42Z is the ICD-10-PCS code for a revision procedure on the upper artery using a percutaneous endoscopic approach with monitoring device. In ICD-10-PCS, revision means correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device.

In plain terms, this corresponds to incision of vessel, upper limb vessels, the ICD-9-CM procedure title it maps to (38.03).

The same procedure with a different approach is coded 03WY02Z (open), 03WY32Z (percutaneous) and 03WYX2Z (external).

With a different device, use 03WY40Z (drainage device), 03WY43Z (infusion device), 03WY47Z (autologous tissue substitute), 03WY4CZ (extraluminal device), 03WY4DZ (intraluminal device), 03WY4JZ (synthetic substitute) and 3 more.

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
3Upper Arteries
3. Operation
WRevision

Correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device

Revision can include correcting a malfunctioning or displaced device by taking out or putting in components of the device such as a screw or pin

Includes: Adjustment of position of pacemaker lead, recementing of hip prosthesis

4. Body Part
YUpper Artery

Includes: Aortic intercostal artery; Bronchial artery; Esophageal artery; Subcostal artery

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 →
  • 38.03Incision of vessel, upper limb 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 03WY42Z

Is 03WY42Z a valid ICD-10-PCS code for 2027?

Yes. 03WY42Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 03WY42Z an O.R. procedure?

Yes. 03WY42Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 03WY42Z group to?

Depending on the principal diagnosis, 03WY42Z can group to MS-DRG 252, MS-DRG 253 and MS-DRG 254.

What is the ICD-9 procedure code for 03WY42Z?

The CMS GEMs map 03WY42Z to ICD-9-CM 38.03 (Incision of vessel, upper limb vessels).