K08.5Unsatisfactory restoration of tooth

K08.5 is the ICD-10-CM diagnosis code for unsatisfactory restoration of tooth. It belongs to category K08 (other disorders of teeth and supporting structures), block K00-K14 (diseases of oral cavity and salivary glands) and chapter 11 (diseases of the digestive system). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

Within K08 (other disorders of teeth and supporting structures), K08.5 is specifically for unsatisfactory restoration of tooth. Related codes cover Exfoliation of teeth due to systemic causes (K08.0), complete loss of teeth (K08.1), atrophy of edentulous alveolar ridge (K08.2), retained dental root (K08.3), partial loss of teeth (K08.4), other specified disorders of teeth and supporting structures (K08.8) and disorder of teeth and supporting structures, unspecified (K08.9).

To report this condition, pick the subcode that matches the documentation: K08.50 (unspecified), K08.51 (tooth), K08.52 (materials), K08.53 (material), K08.54 (health), K08.55 (material), K08.56 (tooth) and K08.59 (tooth).

Don't report K08.5 together with the conditions in its Excludes1 note: dental restoration status (Z98.811).

The conditions in its Excludes2 note aren't part of K08.5, but may be coded alongside it if the patient has both: endosseous dental implant failure (M27.6-) and unsatisfactory endodontic treatment (M27.5-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.