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ICD-10-PCS 2027 procedure code

0NWB45ZRevision of External Fixation Device in Nasal Bone, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Revision of Ext Fix in Nasal Bone, Perc Endo Approach

Code last changed in FY2025 (effective October 1, 2024). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0NWB45Z

0NWB45Z is the ICD-10-PCS code for a revision procedure on the nasal bone using a percutaneous endoscopic approach with external fixation 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.

For a different body part, codes include 0NW045Z (skull) and 0NWW45Z (facial bone).

The same procedure with a different approach is coded 0NWB05Z (open), 0NWB35Z (percutaneous) and 0NWBX5Z (external).

With a different device, use 0NWB40Z (drainage device), 0NWB44Z (internal fixation device), 0NWB47Z (autologous tissue substitute), 0NWB4JZ (synthetic substitute), 0NWB4KZ (nonautologous tissue substitute) and 0NWB4MZ (bone growth stimulator).

It is an operating-room procedure in the MS-DRG logic for DRG 023 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator), DRG 024 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC), DRG 025 (Craniotomy and Endovascular Intracranial Procedures with MCC), DRG 026 (Craniotomy and Endovascular Intracranial Procedures with CC) and DRG 027 (Craniotomy and Endovascular Intracranial Procedures without CC/MCC), under the surgical categories “Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis” and “Craniotomy and endovascular intracranial procedures”.

It was added in FY2025, effective October 1, 2024.

What each character means

1. Section
0Medical and Surgical
2. Body System
NHead and Facial Bones
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
BNasal Bone

Includes: Vomer of nasal septum

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
5External Fixation Device
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.

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
  • FY2025 (effective 10/1/2024): Added
  • No changes since FY2025.

Common questions about 0NWB45Z

Is 0NWB45Z a valid ICD-10-PCS code for 2027?

Yes. 0NWB45Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0NWB45Z an O.R. procedure?

Yes. 0NWB45Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0NWB45Z group to?

Depending on the principal diagnosis, 0NWB45Z can group to MS-DRG 023, MS-DRG 024, MS-DRG 025, MS-DRG 026 and MS-DRG 027.