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ICD-10-PCS 2027 procedure code

0TWB42ZRevision of Monitoring Device in Bladder, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Revision of Monitoring Device in Bladder, 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 0TWB42Z

0TWB42Z is the ICD-10-PCS code for a revision procedure on the bladder 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 cystotomy, the ICD-9-CM procedure title it maps to (57.19).

For a different body part, codes include 0TW542Z (kidney), 0TW942Z (ureter) and 0TWD42Z (urethra).

The same procedure with a different approach is coded 0TWB02Z (open), 0TWB32Z (percutaneous), 0TWB72Z (via natural or artificial opening), 0TWB82Z (via natural or artificial opening endoscopic) and 0TWBX2Z (external).

With a different device, use 0TWB40Z (drainage device), 0TWB43Z (infusion device), 0TWB47Z (autologous tissue substitute), 0TWB4CZ (extraluminal device), 0TWB4DZ (intraluminal device), 0TWB4JZ (synthetic substitute) and 4 more.

It is an operating-room procedure in the MS-DRG logic for DRG 662 (Minor Bladder Procedures with MCC), DRG 663 (Minor Bladder Procedures with CC), DRG 664 (Minor Bladder Procedures without CC/MCC), DRG 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC) and DRG 909 (Other O.R. Procedures for Injuries without CC/MCC), under the surgical categories “Minor Bladder Procedures” and “Other O.R. Procedures for Injuries”.

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
TUrinary 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
BBladder

Includes: Trigone of bladder

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 →
  • 57.19Other cystotomyapproximate

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 0TWB42Z

Is 0TWB42Z a valid ICD-10-PCS code for 2027?

Yes. 0TWB42Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0TWB42Z an O.R. procedure?

Yes. 0TWB42Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0TWB42Z group to?

Depending on the principal diagnosis, 0TWB42Z can group to MS-DRG 662, MS-DRG 663, MS-DRG 664, MS-DRG 907, MS-DRG 908 and MS-DRG 909.

What is the ICD-9 procedure code for 0TWB42Z?

The CMS GEMs map 0TWB42Z to ICD-9-CM 57.19 (Other cystotomy).