billing code D6795: interim retainer crown Retainer crown used as an interim restoration for a duration of less than six months when a final impression is not made to allow adequate time for healing or completion of definitive treatment planning. This is not a temporary retainer crown for routine prosthetic fixed partial denture restoration. ISBN:1935201387#CDT 2011-2012 Current Dental Terminology, Chapter 1 D6795 interim retainer crown billing code for fixed partial denture retainers - crowns