North Carolina General Statutes Chapter 58. Insurance § 58-3-121. Discrimination against coverage of certain bones and joints prohibited

(a) Discrimination against coverage of procedures involving bones or joints of the jaw, face, or head is prohibited in any health benefit plan. Whenever a health benefit plan provides coverage on a group or individual basis for diagnostic, therapeutic, or surgical procedures involving bones or joints of the human skeletal structure, that plan may not exclude or deny the same coverage for procedures involving any bone or joint of the jaw, face, or head, so long as the procedure is medically necessary to treat a condition which prevents normal functioning of the particular bone or joint involved and the condition is caused by congenital deformity, disease, or traumatic injury. The coverage required by this section involving bones or joints of the jaw, face, or head shall be subject to the same conditions and limitations as are applicable to coverage of procedures involving other bones and joints of the human skeletal structure.

(b) For purposes of this section, in providing coverage for the treatment of conditions of the jaw (temporomandibular joint), authorized therapeutic procedures shall include splinting and use of intraoral prosthetic appliances to reposition the bones. Payment for these therapeutic procedures, and for procedures involved in any other nonsurgical treatment of temporomandibular joint dysfunction, may be subjected to a reasonable lifetime maximum dollar amount. Nothing in this subsection shall require a health benefit plan to cover orthodontic braces, crowns, bridges, dentures, treatment for periodontal disease, dental root form implants, or root canals.

(c) For purposes of this section, “health benefit plan” means accident and health insurance policies or certificates; nonprofit hospital or medical service corporation contracts; health, hospital, or medical service corporation plan contracts; health maintenance (HMO) subscriber contracts; and plans provided by a MEWA or plans provided by other benefit arrangements, to the extent permitted by ERISA.