NV AB470

Reduces prior authorization response deadlines from 20 days to 48 hours for non-urgent care and 24 hours for urgent care, with 1-hour response required for post-emergency stabilization services

Prohibits insurers from requiring prior authorization for covered emergency services, including ambulance transportation, and establishes a presumption of medical necessity when a provider certifies emergency need within 72 hours

Approved prior authorizations remain valid for 12 months (or longer for chronic conditions), and new insurers must honor approvals from previous insurers for the first 90 days of coverage

Requires insurers to publish prior authorization procedures, clinical review criteria, and annual statistics on approval/denial rates on their websites, with 60-day notice before any procedural changes take effect

Applies to health insurers, Medicaid, CHIP, public employee benefit plans, and local government self-insurance plans, with violations resulting in automatic approval of the prior authorization request