ICD-10-PCS 2027 procedure code
0NHT04ZInsertion of Internal Fixation Device into Right Mandible, Open Approach
Short description: Insertion of Int Fix into R Mandible, 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 0NHT04Z
0NHT04Z is the ICD-10-PCS code for a insertion procedure on the right mandible using an open approach with internal fixation device. In ICD-10-PCS, insertion means putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part.
In plain terms, this corresponds to other incision of facial bone, the ICD-9-CM procedure title it maps to (76.09).
For a different body part, codes include 0NH004Z (skull), 0NH104Z (frontal bone), 0NH304Z (right parietal bone), 0NH404Z (left parietal bone), 0NH504Z (right temporal bone), 0NH604Z (left temporal bone) and 16 more.
The same procedure with a different approach is coded 0NHT34Z (percutaneous) and 0NHT44Z (percutaneous endoscopic).
With a different device, use 0NHT05Z (external fixation device).
It is an operating-room procedure in the MS-DRG logic for 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) and DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC), under the surgical category “Other Ear, Nose, Mouth and Throat O.R. Procedures”.
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
- HInsertion
Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part
Includes: Insertion of radioactive implant, insertion of central venous catheter
- 4. Body Part
- TMandible, Right
- 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 body part
Different approach
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 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat · Other Ear, Nose, Mouth and Throat O.R. Procedures
ICD-9-CM equivalent
Converter →- 76.09Other incision of facial boneapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about 0NHT04Z
Is 0NHT04Z a valid ICD-10-PCS code for 2027?
- Yes. 0NHT04Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 0NHT04Z an O.R. procedure?
- Yes. 0NHT04Z is an O.R. procedure in MS-DRG v44.0.
What DRG does 0NHT04Z group to?
- Depending on the principal diagnosis, 0NHT04Z can group to MS-DRG 143, MS-DRG 144 and MS-DRG 145.
What is the ICD-9 procedure code for 0NHT04Z?
- The CMS GEMs map 0NHT04Z to ICD-9-CM 76.09 (Other incision of facial bone).