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ICD-10-PCS 2027 procedure code

00WU40ZRevision of Drainage Device in Spinal Canal, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Revision of Drain Dev in Spinal Canal, 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 00WU40Z

00WU40Z is the ICD-10-PCS code for a revision procedure on the spinal canal using a percutaneous endoscopic approach with drainage 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 spinal cord and spinal canal structures, the ICD-9-CM procedure title it maps to (03.99).

For a different body part, codes include 00W040Z (brain), 00W640Z (cerebral ventricle), 00WE40Z (cranial nerve) and 00WV40Z (spinal cord).

The same procedure with a different approach is coded 00WU00Z (open), 00WU30Z (percutaneous) and 00WUX0Z (external).

With a different device, use 00WU42Z (monitoring device), 00WU43Z (infusion device), 00WU4JZ (synthetic substitute), 00WU4MZ (neurostimulator lead) and 00WU4YZ (other device).

It is an operating-room procedure in the MS-DRG logic for DRG 028 (Spinal Procedures with MCC), DRG 029 (Spinal Procedures with CC or Spinal Neurostimulators), DRG 030 (Spinal Procedures without CC/MCC), DRG 518 (Back and Neck Procedures Except Spinal Fusion with MCC or Disc Device or Neurostimulator), DRG 519 (Back and Neck Procedures Except Spinal Fusion with CC) and DRG 520 (Back and Neck Procedures Except Spinal Fusion without CC/MCC), under the surgical categories “Spinal Procedures”, “Back and Neck Procedures Except Spinal Fusion or Disc Device or Neurostimulator”, “Lymphoma and Leukemia with Major O.R. Procedures” and 3 more.

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
0Central Nervous System and Cranial Nerves
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
USpinal Canal

Includes: Epidural space, spinal; Extradural space, spinal; Subarachnoid space, spinal; Subdural space, spinal; Vertebral canal

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
0Drainage Device

Includes: Cystostomy tube; Foley catheter; Percutaneous nephrostomy catheter; Thoracostomy tube

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.

MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue · Back and Neck Procedures Except Spinal Fusion or Disc Device or Neurostimulator

ICD-9-CM equivalent

Converter →
  • 03.99Other operations on spinal cord and spinal canal structuresapproximate

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 00WU40Z

Is 00WU40Z a valid ICD-10-PCS code for 2027?

Yes. 00WU40Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 00WU40Z an O.R. procedure?

Yes. 00WU40Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 00WU40Z group to?

Depending on the principal diagnosis, 00WU40Z can group to MS-DRG 028, MS-DRG 029, MS-DRG 030, MS-DRG 518, MS-DRG 519 and MS-DRG 520.

What is the ICD-9 procedure code for 00WU40Z?

The CMS GEMs map 00WU40Z to ICD-9-CM 03.99 (Other operations on spinal cord and spinal canal structures).