317:30-3-65.5. Diagnosis and treatment
When a screening indicates the need for further evaluation of an individual's health, a referral for appropriate diagnostic studies or treatment services must be provided without delay. Diagnostic services are defined as those services necessary to fully evaluate defects, physical or behavioral health illnesses or conditions discovered by the screening.
(1) Health care, treatment, or other measures to correct or ameliorate defects, physical or mental illnesses or conditions must also be provided and will be covered by the EPSDT/OHCA Child Health Program as medically necessary. The defects, illnesses and conditions must have been discovered during the screening or shown to have increased in severity.
(2) Services, deemed medically necessary and allowable under federal Medicaid regulations, may be covered by the EPSDT/OHCA Child Health program even though those services may not be part of the Oklahoma Health Care Authority Medicaid program. However, such services must be prior authorized and must be allowable under federal Medicaid regulations.
(3) Federal Medicaid regulations also require the State to make the determination as to whether the service is medically necessary and do not require the provision of any items or services that the State determines are not safe and effective or which are considered experimental. For more information regarding experimental or investigational including clinical trials, see Oklahoma Administrative Code 317:30-3-57.1.