Nothing contained in Parts 6, 7, or 8 of this Article requires a private physician, private psychologist, commitment examiner, or private facility to accept a respondent as a client either before or after commitment. Treatment at a private facility or by a private physician, psychologist, or commitment examiner is at the expense of the respondent to the extent that the charges are not disposed of by contract between the area authority and the private facility. An area authority and its contract agencies shall set and recover fees for inpatient or outpatient treatment services provided under a commitment order in accordance with N.C. Gen. Stat. § 122C-146 (1973, c. 726, s. 1; c. 1408, s. 1; 1977, c. 400, s. 8; c. 739, s. 2; 1979, c. 358, s. 26; c. 915, ss. 8, 15, 16; 1981, c. 537, s. 1; 1983, c. 380, s. 8; c. 638, s. 14; c. 864, s. 4; 1985, c. 589, s. 2; c. 695, s. 3; 2018-33, s. 20.)