Oral Surgery and Interdental Fixation Services - Claim Documentation Requirements

Claims for oral surgical procedures may be processed under either the patient's dental coverage or medical coverage. An operative report or pathology notes (as appropriate) are required for HMSA to determine the appropriate application of dental or medical plan benefits for the following procedures.

CPT Code Description
21015 Radical resection of tumor (e.g., malignant neoplasm), soft tissue of face or scalp
21025 Excision of bone (e.g., for osteomyelitis or bone abscess); mandible
21026

facial bone(s)

21029 Removal by contouring of benign tumor of facial bone (e.g., fibrous dysplasia)
21030 Excision of benign tumor or cyst or maxilla or zygoma by enucleation and curettage
21032 Excision of maxillary torus palatinus
21034 Excision of malignant tumor or maxilla or zygoma
21040 Excision of benign tumor or cyst of mandible, by enucleation and/or curettage
21044 Excision of malignant tumor or mandible
21045

radical resection

21046 Excision of benign tumor or cyst of mandible; requiring intra-oral osteotomy (e.g., locally aggressive or destructive lesion(s))
21047

requiring extra-oral osteotomy and partial mandibulectomy (e.g., locally aggressive or destructive lesion(s))

21048 Excision of benign tumor or cyst of maxilla; requiring intra-oral osteotomy (e.g., locally aggressive or destructive lesion(s))
21049

requiring extra-oral osteotomy and partial maxillectomy (e.g., locally aggressive or destructive lesion(s))

21050 Condylectomy, temporomandibular joint (separate procedure)
21060 Meniscectomy, partial or complete, temporomandibular joint (separate procedure)
21070 Coronoidectomy (separate procedure)
21073

Manipulation of temporomandibular joint(s) (TMJ), therapeutic, requiring an anesthesia service (i.e., general or monitored anesthesia care)

If this service is performed in the emergency room, medical records will be evaluated for possible coverage based on the emergent nature of the patient's presenting problem. However, in other settings, this service will not be covered because treatment of TMJ is a specific exclusion of HMSA plans. See Exclusions for more information.

21110 Application of interdental fixation device for conditions other than fracture or dislocation, includes removal
41820 Gingivectomy, excision gingiva, each quadrant
41821 Operculectomy, excision pericoronal tissues
41850 Destruction of lesion (except excision), dentoalveolar structures
41870 Periodontal mucosal grafting

Revision History

Date Nature of Revision
08/03/2026

Migrated to new platform.