A patient underwent distraction osteogenesis for cranio-synostosis. An osteotomy was performed to gain access to the area to be distracted. Segments of soft spots were roughed up with placement of bone chips and titanium plates to stabilize the bone. Cranial distracters were applied bilaterally to the temporal region and near the vertex. The ratchet system was activated. What are the appropriate ICD-10-PCS code assignments?
A cranial distracter is an external fixation device that is attached to the skull with screws for repositioning of the bone. The root operation “supplement” would be used to describe the titanium placement used to stabilize the bone. Distraction devices are used in this procedure to expand the cranial bones. The bones are pulled apart through pressure and traction that is applied by rotation of the distraction device. Assign the following ICD-10-PCS codes:
0NS005Z, Reposition skull with external fixation device, open approach
0NU00JZ, Supplement skull with synthetic substitute, open approach