Tomography

Tomography in dentistry most commonly refers to cone beam computed tomography, a three-dimensional imaging modality that produces cross-sectional views of the maxillofacial region. Unlike traditional two-dimensional radiographs, CBCT allows clinicians to evaluate anatomical structures from multiple planes, providing detailed information about bone density, root morphology, nerve canal proximity, and pathologic conditions. This level of diagnostic detail is invaluable for treatment planning in implant placement, endodontic assessment, orthodontic evaluation, and oral surgery.

From a billing and revenue cycle standpoint, tomographic imaging represents both a clinical asset and a coding challenge. CDT codes such as D0364 through D0368 cover various CBCT capture and interpretation scenarios, and these codes carry significantly higher fee values than standard periapical or panoramic radiographs. However, insurance carriers frequently scrutinize CBCT claims and may deny them without sufficient documentation of medical necessity. Practices must clearly articulate why conventional imaging was inadequate and how the CBCT findings directly influenced the treatment plan.

Dental practices that invest in in-office CBCT units should establish strong protocols for documentation and billing. Each scan should be accompanied by a detailed narrative in the patient record explaining the clinical indication. Staff responsible for claims submission need training on which specific CBCT codes apply based on the field of view captured and whether the interpretation is performed in-house or referred to an oral radiologist. Proper workflow around tomographic imaging can turn a significant capital investment into a reliable revenue stream while improving diagnostic accuracy and patient outcomes.