July 29, 2025
Medical Affairs: How We Can Help
If you receive claim denials for provider not eligible (denial code 171) or procedure invalid for place of service (error code 5) that you feel are in error, please send your question(s) to CMD.Inquiry@cgsadmin.com for our Medical Affairs team to research.
Medical Affairs can also assist with questions related to:
- Local Cover Determination (LCD) policies
- Presenting at an Open Meeting for draft policies
- Denials related to an LCD or National Coverage Determination (NCD)
- LCD reconsideration process
- New LCD policy requests
- Place of Service issues
- Provider not eligible for a procedure or service
- Independent Diagnostic Testing Facility (IDTF)
- MolDX
- Billing or coding issues or denials
- Dental services
- Reimbursement
- Targeted Probe and Educate (TPE)
- Prior Authorization

