Okla. Stat. tit. 85A, § 85
Clean claims for services rendered under this act are payable within thirty (30) days after receipt by the employer unless disputed as to compensability or amount. "Clean claim" means a claim that has no defect or impropriety, including a lack of any required substantiating documentation, or particular circumstance requiring special treatment that impedes prompt payment.
Laws 2013, SB 1062, c. 208, § 85, eff. February 1, 2014.