0N964ZZ
Drainage of Left Temporal Bone, Percutaneous Endoscopic Approach
Drainage of Left Temporal Bone, Perc Endo 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 Operation9 | Drainage Taking or letting out fluids and/or gases from a body part |
| 4 | Body Part6 | Temporal Bone, Left |
| 5 | Approach4 | Percutaneous Endoscopic |
| 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 6 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 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.
Contextual Map
Every relationship of 0N964ZZ in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
PCS table
- 0N9[PCS table]
- [object Object] — Section: [object Object] [Section]: “[object Object]”
- [object Object] — Body System: [object Object] [Body System]: “[object Object]”
- [object Object] — Operation: [object Object] [Operation]: “[object Object]”
MS-DRG participation
- DRG 023 — CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PRINCIPAL DIAGNOSIS WITH MCC OR ANTINEOPLASTIC IMPLANT OR EPILEPSY WITH NEUROSTIMULATOR [MS-DRG]: “CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PRINCIPAL DIAGNOSIS WITH MCC OR ANTINEOPLASTIC IMPLANT OR EPILEPSY WITH NEUROSTIMULATOR — Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis (MDC 01)”
- DRG 024 — CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PRINCIPAL DIAGNOSIS WITHOUT MCC [MS-DRG]: “CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PRINCIPAL DIAGNOSIS WITHOUT MCC — Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis (MDC 01)”
- DRG 025 — CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITH MCC [MS-DRG]: “CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITH MCC — Craniotomy and endovascular intracranial procedures (MDC 01)”
- DRG 026 — CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITH CC [MS-DRG]: “CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITH CC — Craniotomy and endovascular intracranial procedures (MDC 01)”
- DRG 027 — CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITHOUT CC/MCC [MS-DRG]: “CRANIOTOMY AND ENDOVASCULAR INTRACRANIAL PROCEDURES WITHOUT CC/MCC — Craniotomy and endovascular intracranial procedures (MDC 01)”
- DRG 955 — CRANIOTOMY FOR MULTIPLE SIGNIFICANT TRAUMA [MS-DRG]: “CRANIOTOMY FOR MULTIPLE SIGNIFICANT TRAUMA — Craniotomy for Multiple Significant Trauma (MDC 24)”
Nearest codes
- 0N904ZZ — Drainage of Skull, Percutaneous Endoscopic Approach [One axis away]
- 0N914ZZ — Drainage of Frontal Bone, Percutaneous Endoscopic Approach [One axis away]
- 0N934ZZ — Drainage of Right Parietal Bone, Percutaneous Endoscopic Approach [One axis away]
- 0N944ZZ — Drainage of Left Parietal Bone, Percutaneous Endoscopic Approach [One axis away]
- 0N954ZZ — Drainage of Right Temporal Bone, Percutaneous Endoscopic Approach [One axis away]
- 0N960ZZ — Drainage of Left Temporal Bone, Open Approach [One axis away]
- 0N963ZZ — Drainage of Left Temporal Bone, Percutaneous Approach [One axis away]
- 0N9640Z — Drainage of Left Temporal Bone with Drainage Device, Percutaneous Endoscopic Approach [One axis away]
Change history
No changes recorded for this code — unchanged since the FY2026 (April) baseline of the change ledger.