ICD-10-PCS 2027 procedure code
0NTT0ZZResection of Right 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 0NTT0ZZ
0NTT0ZZ is the ICD-10-PCS code for a resection procedure on the right mandible using an open approach. In ICD-10-PCS, resection means cutting out or off, without replacement, all of a body part.
In plain terms, this corresponds to other total mandibulectomy, the ICD-9-CM procedure title it maps to (76.42).
For a different body part, codes include 0NT10ZZ (frontal bone), 0NT30ZZ (right parietal bone), 0NT40ZZ (left parietal bone), 0NT50ZZ (right temporal bone), 0NT60ZZ (left temporal bone), 0NT70ZZ (occipital bone) and 15 more.
It is an operating-room procedure in the MS-DRG logic for DRG 140 (Major Head and Neck Procedures with MCC), DRG 141 (Major Head and Neck Procedures with CC), DRG 142 (Major Head and Neck Procedures without CC/MCC), DRG 515 (Other Musculoskeletal System and Connective Tissue O.R. Procedures with MCC), DRG 516 (Other Musculoskeletal System and Connective Tissue O.R. Procedures with CC) and DRG 517 (Other Musculoskeletal System and Connective Tissue O.R. Procedures without CC/MCC), under the surgical categories “Major Head and Neck Procedures”, “Other Musculoskeletal System and Connective Tissue O.R. Procedures”, “Other O.R. Procedures for Injuries” and 1 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
- TResection
Cutting out or off, without replacement, all of a body part
Includes: Total nephrectomy, total lobectomy of lung
- 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
- ZNo Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
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 · Major Head and Neck Procedures
MDC 08 · Diseases and Disorders of the Musculoskeletal System and Connective Tissue · Other Musculoskeletal System and Connective Tissue O.R. Procedures
MDC 21 · Injuries, Poisonings and Toxic Effects of Drugs · Other O.R. Procedures for Injuries
MDC 24 · Multiple Significant Trauma · Other O.R. Procedures for Multiple Significant Trauma
ICD-9-CM equivalent
Converter →- 76.42Other total mandibulectomyapproximate
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 0NTT0ZZ
Is 0NTT0ZZ a valid ICD-10-PCS code for 2027?
- Yes. 0NTT0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 0NTT0ZZ an O.R. procedure?
- Yes. 0NTT0ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 0NTT0ZZ group to?
- Depending on the principal diagnosis, 0NTT0ZZ can group to MS-DRG 140, MS-DRG 141, MS-DRG 142, MS-DRG 515, MS-DRG 516 and MS-DRG 517.
What is the ICD-9 procedure code for 0NTT0ZZ?
- The CMS GEMs map 0NTT0ZZ to ICD-9-CM 76.42 (Other total mandibulectomy).