Preauthorization is required for: Certain audiology and hearing aid services, as specified in COMAR 10.09.51.06; Certain dental services, as specified in COMAR 10.09.05.06; Certain vision services, as specified in COMAR 10.09.14.06; Private duty nursing services, as specified in COMAR 10.09.53.06; Residential treatment services, as specified in COMAR 10.09.29.06; Therapeutic behavioral services, as specified in COMAR 10.09.34.05; and Intermediate Care Facilities, as specified in COMAR 10.47.02.09 or COMAR 10.63.03.13, whichever is applicable.