# 2025 Out-of-Network Billing Guidelines & Filing Limits
> Learn out-of-network billing guidelines for 2025, including No Surprises Act compliance, timely filing limits for major payers, and RCM best practices.

Tags: medical-billing, out-of-network, no-surprises-act, revenue-cycle-management, healthcare-compliance, insurance-claims
## 2025 Out-of-Network Billing Guidelines
* Overview of filing limits and compliance for BCBS, Aetna, Humana, and UHC.

## The OON Landscape in 2025
* Out-of-network (OON) billing is subject to No Surprises Act regulations.
* Reimbursements often use Usual, Customary, and Reasonable (UCR) rates.

## No Surprises Act: Critical Restrictions
* Ban on balance billing for emergency and air ambulance services.
* OON providers cannot balance bill at in-network facilities for ancillary services like anesthesiology.
* Independent Dispute Resolution (IDR) is used for rating disputes.

## Typical Window to Bill (Days)
* UHC (Standard): 90 days
* Humana (Typical): 90 days
* Aetna (OAP/PPO): 180 days
* BCBS (State Avg): 365 days

## Payer Specifics
* **UHC & Humana:** Strict 90-day filing windows from date of service; electronic submission recommended.
* **BCBS & Aetna:** BCBS varies by region (90-365 days). Aetna is typically 180 days for commercial plans.

## State-Specific Protections
* **California (AB 72):** Reimbursement set at greater of 125% of Medicare or average contracted rate.
* **New York:** Strong protection against emergency and referral bills since 2015.
* **Florida & Texas:** Independent dispute resolution processes established.

## 2025 RCM Best Practices
* Verify patient eligibility and filing limits via payer portals every visit.
* Provide Good Faith Estimates (GFE) for self-pay and OON patients.
* Aim to file all OON claims within 30 days to ensure compliance with strict payer windows.
---
This presentation was created with [Bobr AI](https://bobr.ai) — an AI presentation generator.