Okla. Stat. tit. 43A, § 43A-4-201: Liability of consumer and estate for cost of care and

treatment.

A consumer at a facility within the Department of Mental Health

and Substance Abuse Services is liable for his or her care and

treatment. This claim of the state for such care and treatment

shall constitute a valid indebtedness against any such consumer and

the estate of the consumer and shall not be barred by any statute of

limitations. At the death of the consumer this claim shall be

allowed and paid as other lawful claims against the estate.

Provided, further that no admission or detention of a consumer in a

state facility shall be limited or conditioned in any manner by the

financial status or ability to pay of a consumer, the estate of the

consumer, or any relative of the consumer.