
Webinar Abstract
While multiplex molecular testing offers reference laboratories and hospitals powerful capabilities for pathogen detection, navigating the payer landscape can be just as complex as the science behind the panels. For labs running multiplex molecular panels, reimbursement denials remain a persistent challenge—but there are strategies to overcome the most common denial drivers: coverage, documentation, and coding practices that are not aligned with payer requirements.
Ann Lambrix, Executive Director of RCM Consulting at Lighthouse Lab Services, will deliver a practical, real-world perspective on overcoming reimbursement challenges in molecular multiplex testing. Drawing on more than two decades of revenue cycle experience, she will provide a clear overview of key payer requirements, including MolDX® and major commercial payer policies, while sharing actionable strategies that laboratory leaders and billing professionals can implement immediately to reduce denials, strengthen compliance, and improve reimbursement outcomes before claims are ever submitted.
Whether you are a lab director, billing manager, or operations leader, this session will equip you with the knowledge to protect your revenue and maximize the return on your molecular testing investment.
Key takeaways:
- Summarize key payer requirements for multiplex testing, including MolDX and major commercial policies
- Identify common denial drivers related to coverage, documentation, and coding requirements
- Apply payer-aligned practices to reduce denials and improve claims and reimbursement outcomes

Speaker Bio: Ann Lambrix
Executive Director, RCM Consulting.
Ann Lambrix serves as Lighthouse’s Executive Director of RCM Consulting, heading up the division’s day-to-day operations. With more than 23 years in the medical insurance and billing industry, her experience provides for an insightful analysis of revenue cycle and the payor trends impacting reimbursement. Additionally, Ann holds a MSJ in Health and Hospital Law.
