Hi Guest! D6110 – implant /abutment supported removable denture for edentulous arch – maxillary D6111 – implant /abutment supported removable denture for edentulous arch – mandibular There are not direct crosscodes we are aware of for implant support dentures (21248 would be for the implant procedure itself), 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), or you can use the CPT code below and include a narrative report describing the procedure: 41899 – Unlisted procedure, dentoalveolar structures Hope this helps!