ICD-10-PCS 2027 procedure code
0NS704ZReposition Occipital Bone with Internal Fixation Device, Open Approach
Short description: Reposition Occipital Bone with Int Fix, Open 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 0NS704Z
0NS704Z is the ICD-10-PCS code for a reposition procedure on the occipital 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 elevation of skull fracture fragments, the ICD-9-CM procedure title it maps to (02.02).
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 0NS734Z (percutaneous) and 0NS744Z (percutaneous endoscopic).
With a different device, use 0NS70ZZ (no device).
It is an operating-room procedure in the MS-DRG logic for DRG 023 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator), DRG 024 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC), DRG 025 (Craniotomy and Endovascular Intracranial Procedures with MCC), DRG 026 (Craniotomy and Endovascular Intracranial Procedures with CC), DRG 027 (Craniotomy and Endovascular Intracranial Procedures without CC/MCC) and DRG 140 (Major Head and Neck Procedures with MCC), under the surgical categories “Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis”, “Craniotomy and endovascular intracranial procedures”, “Major Head and Neck Procedures” and 3 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
- 7Occipital Bone
Includes: Clivus; Foramen magnum
- 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 01 · Diseases and Disorders of the Nervous System · Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis
MDC 01 · Diseases and Disorders of the Nervous System · Craniotomy and endovascular intracranial procedures
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 · Craniotomy for Multiple Significant Trauma
ICD-9-CM equivalent
Converter →- 02.02Elevation of skull fracture fragmentsapproximate
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)
- FY2018 (effective 10/1/2017): Title revised — was “Reposition Right Occipital Bone with Internal Fixation Device, Open Approach”
Common questions about 0NS704Z
Is 0NS704Z a valid ICD-10-PCS code for 2027?
- Yes. 0NS704Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 0NS704Z an O.R. procedure?
- Yes. 0NS704Z is an O.R. procedure in MS-DRG v44.0.
What DRG does 0NS704Z group to?
- Depending on the principal diagnosis, 0NS704Z can group to MS-DRG 023, MS-DRG 024, MS-DRG 025, MS-DRG 026, MS-DRG 027 and MS-DRG 140.
What is the ICD-9 procedure code for 0NS704Z?
- The CMS GEMs map 0NS704Z to ICD-9-CM 02.02 (Elevation of skull fracture fragments).