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ICD 10 Code 0NS604Z

Reposition Left Temporal Bone with Internal Fixation Device, Open Approach
“Reposition Left Temporal Bone with Int Fix, Open Approach” for short

0NS604Z is a valid billable ICD-10 procedure code for Reposition Left Temporal Bone with Internal Fixation Device, Open Approach. It is found in the 2025 version of the ICD-10 Procedure Coding System (PCS) and can be used in all HIPAA-covered transactions from Oct 01, 2024 - Sep 30, 2025.

Reposition involves:
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

Open approach involves:
Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

Reposition includes:

  • Reposition of undescended testicle, fracture reduction

Temporal Bone, Left body part includes:

  • Mastoid process
  • Petrous part of temporal bone
  • Tympanic part of temporal bone
  • Zygomatic process of temporal bone
MS-DRG - Medicare Severity-Diagnosis Related Group
  • MDC 01 Diseases & Disorders of the Nervous System
    Craniotomy with Major Device Implant or Acute Complex CNS PDX
    • DRG 023 - CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PDX WITH MCC OR CHEMOTHERAPY IMPLANT OR EPILEPSY WITH NEUROSTIMULATOR
    • DRG 024 - CRANIOTOMY WITH MAJOR DEVICE IMPLANT OR ACUTE COMPLEX CNS PDX WITHOUT MCC
  • MDC 01 Diseases & Disorders of the Nervous System
    Craniotomy and Endovascular Intracranial Procedures
    • 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
  • MDC 08 Diseases & Disorders of the Musculoskeletal System & Connective Tissue
    Other Musculoskeletal System and Connective Tissue O.R. Procedures
    • 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
    • DRG 517 - OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE O.R. PROCEDURES WITHOUT CC/MCC
  • MDC 21 Injuries, Poisonings & Toxic Effects of Drugs
    Other O.R. Procedures for Injuries
    • DRG 907 - OTHER O.R. PROCEDURES FOR INJURIES WITH MCC
    • DRG 908 - OTHER O.R. PROCEDURES FOR INJURIES WITH CC
    • DRG 909 - OTHER O.R. PROCEDURES FOR INJURIES WITHOUT CC/MCC
  • MDC 24 Multiple Significant Trauma
    Craniotomy for Multiple Significant Trauma
    • DRG 955 - CRANIOTOMY FOR MULTIPLE SIGNIFICANT TRAUMA

ICD-10-PCS code structure for 0NS604Z — See Table View

1: Section 0 Medical and Surgical
2: Body System N Head and Facial Bones
3: Root Operation S Reposition
4: Body Part 6 Temporal Bone, Left
5: Approach 0 Open
6: Device 4 Internal Fixation Device
7: Qualifier Z No Qualifier

See also

  • The ICD-10-PCS Index of common procedure terms.
  • Medical and Surgical terms in the ICD-10-PCS Definitions table. These definitions may also provide additional explanation and/or examples within this section.
  • The ICD-10-PCS Device Aggregation Table containing entries that correlate a specific ICD-10-PCS device value with a general device value to be used in tables containing only general device values.