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ICD-10-PCS 2027 procedure code

0NSX04ZReposition Hyoid Bone with Internal Fixation Device, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Reposition Hyoid Bone with Int Fix, Open 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 0NSX04Z

0NSX04Z is the ICD-10-PCS code for a reposition procedure on the hyoid bone using an open approach with internal 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 other open reduction of facial fracture, the ICD-9-CM procedure title it maps to (76.79).

For a different body part, codes include 0NS004Z (skull), 0NS104Z (frontal bone), 0NS304Z (right parietal bone), 0NS404Z (left parietal bone), 0NS504Z (right temporal bone), 0NS604Z (left temporal bone) and 16 more.

The same procedure with a different approach is coded 0NSX34Z (percutaneous) and 0NSX44Z (percutaneous endoscopic).

With a different device, use 0NSX0ZZ (no device).

It is an operating-room procedure in the MS-DRG logic for DRG 113 (Orbital Procedures with CC/MCC), DRG 114 (Orbital Procedures without CC/MCC), DRG 143 (Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC), DRG 144 (Other Ear, Nose, Mouth and Throat O.R. Procedures with CC), DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC) and DRG 515 (Other Musculoskeletal System and Connective Tissue O.R. Procedures with MCC), under the surgical categories “Orbital Procedures”, “Other Ear, Nose, Mouth and Throat O.R. Procedures”, “Other Musculoskeletal System and Connective Tissue O.R. Procedures” and 2 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
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
XHyoid Bone
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
4Internal Fixation Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different device

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

MDC 02 · Diseases and Disorders of the Eye · Orbital Procedures

ICD-9-CM equivalent

Converter →
  • 76.79Other open reduction of facial 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)
  • No changes since FY2016.

Common questions about 0NSX04Z

Is 0NSX04Z a valid ICD-10-PCS code for 2027?

Yes. 0NSX04Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0NSX04Z an O.R. procedure?

Yes. 0NSX04Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0NSX04Z group to?

Depending on the principal diagnosis, 0NSX04Z can group to MS-DRG 113, MS-DRG 114, MS-DRG 143, MS-DRG 144, MS-DRG 145 and MS-DRG 515.

What is the ICD-9 procedure code for 0NSX04Z?

The CMS GEMs map 0NSX04Z to ICD-9-CM 76.79 (Other open reduction of facial fracture).