Inpatient Procedure Code
0NN10ZZ
Release Frontal Bone, Open Approach
Axis Breakdown
Every ICD-10-PCS code is exactly seven characters, one per axis. Each character's meaning is defined by its position in the code.
| Position | Value | Meaning |
|---|---|---|
| 1 | Section0 | Medical and Surgical |
| 2 | Body SystemN | Head and Facial Bones |
| 3 | Root OperationN | Release Freeing a body part from an abnormal physical constraint by cutting or by the use of force |
| 4 | Body Part1 | Frontal Bone |
| 5 | Approach0 | Open |
| 6 | DeviceZ | No Device |
| 7 | QualifierZ | No Qualifier |
Potential MS-DRG Relationships (FY2026)
The MS-DRG grouper treats this as an operating room procedure. It appears in the surgical logic of 15 MS-DRGs:
- MDC 01 — Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis: DRG 023, DRG 024
- MDC 01 — Craniotomy and endovascular intracranial procedures: DRG 025, DRG 026, DRG 027
- MDC 03 — Other Ear, Nose, Mouth and Throat O.R. Procedures: DRG 143, DRG 144, DRG 145
- MDC 08 — Other Musculoskeletal System and Connective Tissue O.R. Procedures: DRG 515, DRG 516, DRG 517
- MDC 21 — Other O.R. Procedures for Injuries: DRG 907, DRG 908, DRG 909
- MDC 24 — Craniotomy for Multiple Significant Trauma: DRG 955
From the CMS MS-DRG Definitions Manual, Appendix E. Actual DRG assignment depends on the complete claim.
Change history
No changes recorded for this code — unchanged since the FY2026 (April) baseline of the change ledger.