Okla. Admin. Code § 810:15-15-1
In addition to the terms defined in 85A O.S., § 2 and 810:15-1-2, the following words and terms, when used in this Subchapter, shall have the following meaning, unless the context clearly indicates otherwise:
"Medical fee dispute" means a dispute that involves an amount of payment for health or rehabilitation services, medicines or supplies rendered to an injured employee. "Medical fee dispute" includes a health care provider dispute of the denial or reduction by the insurance carrier of a bill for services. "Medical fee dispute" does not include disputes that involve an amount of payment for health care services rendered to an injured employee by a certified workplace medical plan or pursuant to a written contract between the insurance carrier and provider as provided in 85A O.S., § 55(B).
"Medical fee dispute resolution"or "MFDR" means a process for resolution of a medical fee dispute.
Okla. Admin. Code § 810:15-15-1