Hi jbublik!
D4275 = non-autogenous connective tissue graft (including recipient site and donor material) first tooth, implant, or edentulous tooth position in graft
can be crosscoded to:
41870 - Periodontal mucosal grafting
This crosscode is listed in Aetna's medical policy for "Oral Surgery Dental in Nature" policy at the link below:
https://www.aetnadental.com/professionals/pdf/oral-surgery-dental-in-nature.pdfHope this helps!