Colorado SB 21-199 (Surprise Billing Protection Act), effective January 1, 2022, prohibits balance billing when out-of-network providers deliver emergency services or scheduled non-emergency services at in-network facilities. Patients pay only in-network cost-sharing regardless of provider network status.
Protected Services Under Colorado SB 21-199
Colorado's balance billing law covers two distinct service categories:
- Emergency services: Any emergency care from any provider, in or out of network
- Scheduled non-emergency services: Planned procedures at in-network facilities performed by OON providers
In both cases, patients pay only their in-network cost-sharing amounts (deductible, copay, coinsurance). The insurer pays the OON provider directly at the applicable in-network contracted rate.
Billing Obligation and Provider Responsibility
When an OON provider delivers covered services, the billing obligation flows to the insurer, not the patient. The OON provider must bill the insurer at in-network rates. Patients are explicitly protected from balance billing for covered services. The law prohibits balance billing regardless of the provider's agreement with the patient.
Dispute Resolution Process
If an OON provider and insurer cannot agree on payment rates, they have 30 days to negotiate. If unresolved, the Colorado dispute resolution process applies. The Colorado Division of Insurance enforces SB 21-199 and can take regulatory action against carriers that deny in-network protections.
Federal vs. State Coverage
Colorado SB 21-199 applies to state-regulated health plans. ERISA self-funded plans are governed by the federal No Surprises Act (January 1, 2022). For state-regulated plans, Colorado law applies. For ERISA plans, federal law governs. Whichever provides greater protections applies.
How to Dispute a Balance Bill
If you receive a balance bill for a covered service, contact your health plan citing SB 21-199. Request the plan pay the OON provider at in-network rates and adjust your responsibility to in-network cost-sharing. If the plan denies adjustment, file a complaint with the Colorado Division of Insurance.
Track balance billing disputes and ensure Colorado SB 21-199 compliance with Altair.
Frequently Asked Questions
Does Colorado's balance billing law cover ambulance services?
Ambulance services are not explicitly covered under Colorado SB 21-199. Federal No Surprises Act provides limited ambulance protections; ground ambulance has minimal coverage while air ambulance is largely excluded.
Does Colorado SB 21-199 apply to self-funded employer plans?
No. Colorado SB 21-199 applies to state-regulated health plans. ERISA self-funded plans are governed by federal No Surprises Act (effective January 1, 2022), not Colorado state law.
Related Resources
- Colorado Timely Filing Requirements
- Colorado Surprise Billing Law
- All State Billing Laws
- Balance Billing Law Overview