§ 438.905 Parity requirements for aggregate lifetime and annual dollar limits.
(a) General parity requirement. Each MCO, PIHP, and PAHP providing services to MCO enrollees must comply with paragraphs (b), (c), or (e) of this section for all enrollees of a MCO in States that cover both medical/surgical benefits and mental health or substance use disorder benefits under the State plan. This section details the application of the parity requirements for aggregate lifetime and annual dollar limits.
(b) MCOs, PIHPs, or PAHPs with no limit or limits on less than one-third of all medical/surgical benefits. If a MCO, PIHP, or PAHP does not include an aggregate lifetime or annual dollar limit on any medical/surgical benefits or includes an aggregate lifetime or annual dollar limit that applies to less than one-third of all medical/surgical benefits provided to enrollees through a contract with the State, it may not impose an aggregate lifetime or annual dollar limit, respectively, on mental health or substance use disorder benefits.