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ICD-10-PCS 2027 procedure code

0NSR45ZReposition Maxilla with External Fixation Device, Percutaneous Endoscopic Approach

✓ Valid for 2027

Short description: Reposition Maxilla with Ext Fix, Perc Endo Approach

Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0NSR45Z

0NSR45Z is the ICD-10-PCS code for a reposition procedure on the maxilla using a percutaneous endoscopic approach with external fixation device. In ICD-10-PCS, reposition means moving to its normal location, or other suitable location, all or a portion of a body part.

In plain terms, this corresponds to closed reduction of maxillary fracture, the ICD-9-CM procedure title it maps to (76.73).

For a different body part, codes include 0NS045Z (skull), 0NST45Z (right mandible) and 0NSV45Z (left mandible).

The same procedure with a different approach is coded 0NSR05Z (open) and 0NSR35Z (percutaneous).

With a different device, use 0NSR44Z (internal fixation device) and 0NSR4ZZ (no device).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

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
NHead and Facial Bones
3. Operation
SReposition

Moving to its normal location, or other suitable location, all or a portion of a body part

The body part is moved to a new location from an abnormal location, or from a normal location where it is not functioning correctly. The body part may or may not be cut out or off to be moved to the new location

Includes: Reposition of undescended testicle, fracture reduction

4. Body Part
RMaxilla

Includes: Alveolar process of maxilla

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

ICD-9-CM equivalent

Converter →
  • 76.73Closed reduction of maxillary fractureapproximate

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)
  • FY2018 (effective 10/1/2017): Title revised — was “Reposition Right Maxilla with External Fixation Device, Percutaneous Endoscopic Approach”

Common questions about 0NSR45Z

Is 0NSR45Z a valid ICD-10-PCS code for 2027?

Yes. 0NSR45Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0NSR45Z?

The CMS GEMs map 0NSR45Z to ICD-9-CM 76.73 (Closed reduction of maxillary fracture).