ICD-10-PCS 2027 procedure code
0NHB4MZInsertion of Bone Growth Stimulator into Nasal Bone, Percutaneous Endoscopic Approach
Short description: Insertion of Bone Stim into Nasal Bone, 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 0NHB4MZ
0NHB4MZ is the ICD-10-PCS code for a insertion procedure on the nasal bone using a percutaneous endoscopic approach with bone growth stimulator. 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 incision of nose, the ICD-9-CM procedure title it maps to (21.1).
For a different body part, codes include 0NH04MZ (skull) and 0NHW4MZ (facial bone).
The same procedure with a different approach is coded 0NHB0MZ (open) and 0NHB3MZ (percutaneous).
With a different device, use 0NHB44Z (internal fixation 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
- 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
- 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
- MBone Growth Stimulator
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
Different approach
Different device
ICD-9-CM equivalent
Converter →- 21.1Incision of noseapproximate
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 0NHB4MZ
Is 0NHB4MZ a valid ICD-10-PCS code for 2027?
- Yes. 0NHB4MZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 0NHB4MZ?
- The CMS GEMs map 0NHB4MZ to ICD-9-CM 21.1 (Incision of nose).