ICD-10-PCS Billable Code

0NQ74ZZ

Repair Occipital Bone to No Qualifier with No Device, Percutaneous Endoscopic Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemN Head and Facial Bones
OperationQ Repair
Body Part7 Occipital Bone
Approach4 Percutaneous Endoscopic
DeviceZ No Device
QualifierZ No Qualifier

Operation Definition

Restoring, to the extent possible, a body part to its normal anatomic structure and function

Procedure Overview

Repair procedures for the head and facial bones restore a bone to its normal anatomic structure and function when no other root operation more precisely describes the objective, and this family is essentially a default category used when a defect does not fit cleanly into reconstruction using a device, fusion, or another defined operation. It covers work such as closing a small bony defect, correcting a minor malformation, or fixing an unintended structural problem discovered during another procedure.

Patients may need this after trauma that left a bone fragment malpositioned, after a congenital anomaly affecting facial symmetry, or when a surgeon encounters an incidental defect while operating for another reason and corrects it in the same setting. Because it is a catch-all root operation, the specific clinical scenarios vary widely from one case to the next.

Anatomy & Axis Detail

Occipital Bone

The occipital bone forms the curved base and back of the skull, encasing the posterior cranial fossa where the cerebellum and brainstem sit, and it houses the foramen magnum through which the spinal cord passes. Repair here addresses defects such as small cracks, dural adhesions, or soft-tissue disruption identified during exploration that do not require grafting, plating, or joint restoration to be coded separately. Because the bone is thick and interlaced with venous sinuses, particularly near the confluence of sinuses, surgeons must control bleeding carefully while restoring the bone's structural continuity. Repair is coded when the procedure simply reestablishes normal anatomic integrity, for instance suturing torn periosteum or closing a small dural tear encountered incidentally, rather than replacing missing bone or realigning a fracture with fixation hardware, which would fall under a different root operation.

Approach: Percutaneous Endoscopic

Percutaneous Endoscopic combines a puncture through skin or mucous membrane with insertion of an endoscope to visualize the procedure internally, as in laparoscopic cholecystectomy. It is distinguished from plain Percutaneous by the presence of scope-guided visualization, and from Via Natural or Artificial Opening Endoscopic by its route being a new puncture rather than an existing orifice or stoma.

Coding & Documentation

Coders should reach for this family only after ruling out every other root operation that might better describe the documented work, since Repair applies by default rather than by first choice. The note should describe restoring form or function without inserting a device, removing the whole body part, or performing one of the other defined operations. The most common mistake is overusing Repair as a catch-all when the documentation actually supports a more specific root operation, or conversely under-coding a repair that was performed incidentally alongside a more prominent procedure and left out of the final code set.

Commonly Confused With

ReplacementRepair is most often confused with Replacement, since both can restore appearance or function to a bone; the difference is that Replacement always involves putting in biological or synthetic material to take the place of the body part, while Repair fixes the existing bone without substituting new material for it.
ReleaseIt is also confused with Release, distinguished by whether a constraint is being freed versus a structural defect being fixed.

Procedural Guidance & FAQs

Coding Accuracy

Is 0NQ74ZZ a billable procedure?

Yes, 0NQ74ZZ is a complete, 7-character procedural specification that is acceptable for hospital claim reimbursement.

Technical Axis

What approach is used for 0NQ74ZZ?

This procedure utilizes the Percutaneous Endoscopic approach, mapping to the 5th character in the PCS axis.

Metadata Tags

repair percutaneous endoscopic occipital