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ICD-10-PCS 2027 procedure code

0TW503ZRevision of Infusion Device in Kidney, Open Approach

✓ Valid for 2027O.R. procedure

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 0TW503Z

0TW503Z is the ICD-10-PCS code for a revision procedure on the kidney using an open approach with infusion 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 Nephrotomy, the ICD-9-CM procedure title it maps to (55.01).

For a different body part, codes include 0TW903Z (ureter), 0TWB03Z (bladder) and 0TWD03Z (urethra).

The same procedure with a different approach is coded 0TW533Z (percutaneous), 0TW543Z (percutaneous endoscopic), 0TW573Z (via natural or artificial opening), 0TW583Z (via natural or artificial opening endoscopic) and 0TW5X3Z (external).

With a different device, use 0TW500Z (drainage device), 0TW502Z (monitoring device), 0TW507Z (autologous tissue substitute), 0TW50CZ (extraluminal device), 0TW50DZ (intraluminal device), 0TW50JZ (synthetic substitute) and 2 more.

It is an operating-room procedure in the MS-DRG logic for DRG 656 (Kidney and Ureter Procedures for Neoplasm with MCC), DRG 657 (Kidney and Ureter Procedures for Neoplasm with CC), DRG 658 (Kidney and Ureter Procedures for Neoplasm without CC/MCC), DRG 659 (Kidney and Ureter Procedures for Non-Neoplasm with MCC), DRG 660 (Kidney and Ureter Procedures for Non-Neoplasm with CC) and DRG 661 (Kidney and Ureter Procedures for Non-Neoplasm without CC/MCC), under the surgical categories “”, “Kidney and Ureter Procedures for Non-Neoplasm” 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
5Kidney

Includes: Renal calyx; Renal capsule; Renal cortex; Renal segment

5. Approach
0Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

6. Device
3Infusion Device

Includes: Ascenda Intrathecal Catheter; InDura, intrathecal catheter (1P) (spinal); Non-tunneled central venous catheter; Peripherally inserted central catheter (PICC); Tunneled spinal (intrathecal) catheter

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 →
  • 55.01Nephrotomyapproximate

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 0TW503Z

Is 0TW503Z a valid ICD-10-PCS code for 2027?

Yes. 0TW503Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0TW503Z an O.R. procedure?

Yes. 0TW503Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0TW503Z group to?

Depending on the principal diagnosis, 0TW503Z can group to MS-DRG 656, MS-DRG 657, MS-DRG 658, MS-DRG 659, MS-DRG 660 and MS-DRG 661.

What is the ICD-9 procedure code for 0TW503Z?

The CMS GEMs map 0TW503Z to ICD-9-CM 55.01 (Nephrotomy).