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ICD-10-PCS 2027 procedure code

0BWT42ZRevision of Monitoring Device in Diaphragm, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Revision of Monitor Dev in Diaphragm, 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 0BWT42Z

0BWT42Z is the ICD-10-PCS code for a revision procedure on the diaphragm 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 other operations on diaphragm, the ICD-9-CM procedure title it maps to (34.89).

For a different body part, codes include 0BW042Z (tracheobronchial tree), 0BW142Z (trachea), 0BWK42Z (right lung), 0BWL42Z (left lung) and 0BWQ42Z (pleura).

The same procedure with a different approach is coded 0BWT02Z (open), 0BWT32Z (percutaneous), 0BWT72Z (via natural or artificial opening), 0BWT82Z (via natural or artificial opening endoscopic) and 0BWTX2Z (external).

With a different device, use 0BWT40Z (drainage device), 0BWT47Z (autologous tissue substitute), 0BWT4JZ (synthetic substitute), 0BWT4KZ (nonautologous tissue substitute), 0BWT4MZ (diaphragmatic pacemaker lead) and 0BWT4YZ (other device).

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) and DRG 165 (Major Chest Procedures without CC/MCC), under the surgical category “Major Chest 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
BRespiratory System
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
TDiaphragm
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 →
  • 34.89Other operations on diaphragmapproximate

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 0BWT42Z

Is 0BWT42Z a valid ICD-10-PCS code for 2027?

Yes. 0BWT42Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0BWT42Z an O.R. procedure?

Yes. 0BWT42Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0BWT42Z group to?

Depending on the principal diagnosis, 0BWT42Z can group to MS-DRG 163, MS-DRG 164 and MS-DRG 165.

What is the ICD-9 procedure code for 0BWT42Z?

The CMS GEMs map 0BWT42Z to ICD-9-CM 34.89 (Other operations on diaphragm).