Hi Aurora! K00.0 stands for: Anodontia K08.9 stands for: Disorder of teeth and supporting structures, unspecified Instead of K08.9, since it is an “unspecified” code, you may instead consider: K08.89 – Other specified disorders of teeth and supporting structures And yes, if K00.0 (anodontia) is the reason for the services, that is accurate for your medical claim. Not all medical policies offer coverage for replacement of congenitally missing teeth, so it is important to perform a thorough benefit verification. Showing how the condition is affecting the patients daily function as well (described i your narrative report) is typically important for these types of cases as well. Hope this helps!