Hi Rachel! Depending on the patient”s condition/situation, it is very likely that you”ll use the same diagnostic codes for the D7957 as you did for the D7953 (basically, the diagnosis(es) that led to the bone graft being needed can be the same reason that the guided tissue regeneration needed to be done as well). And just a heads up, some medical insurers will require the use of CPT codes (medical procedure codes) instead of the CDT code (dental procedure codes). If that”s the case: D7953 – bone replacement graft for ridge preservation – per site Can be cross coded to: 21210 – Graft, bone; nasal, maxillary or malar areas (includes obtaining graft) 21215 – Graft, bone; mandible (includes obtaining graft) **use modifier -52 for reduced services when bone is not obtained from patient D7957 – guided tissue regeneration, edentulous area – non-resorbable barrier, per site This code does not have a direct crosscode we are aware of, so you can either bill the “D” code on the medical claim (many insurers these days will process “D” codes when they are medically necessary services), but for the medical insurers who won”t accept the “D” codes, you can try the CPT code below and include a narrative report describing the procedure: 41899 – Unlisted procedure, dentoalveolar structures Hope this helps!
