CERT Articles and Resources

Learn more about common CERT errors and answers to common CERT questions.

Title	Description
99211 and Incident To	Evaluation and Management Services and Incident To guidelines.
Laboratory Date of Service - Advanced Diagnostic Laboratory Tests (ADLT) and Molecular Pathology Tests	Date of Service documentation guidelines
Laboratory Orders Must be Submitted Within 12 Months of Order	Criteria for Laboratory Orders.
Laboratory Services: Incorrect Billing Identified	Common errors.
Major Joint Replacement for Hip and Knee - Documenting Medical Necessity	Common errors and guidelines.
Percutaneous Left Atrial Appendage Closure (LAAC) - How to Avoid Comprehensive Error Rate Testing (CERT) Contractor Errors	Common errors and guidelines.
Physician Impact on Laboratory Service Providers	Common errors and guidelines.
Physician's Orders for Diagnostic Laboratory Tests	Acceptable documentation guidelines.
Responding to CERT Documentation Requests	Directions for CERT documentation requests.
Transcatheter Aortic Valve Replacement (TAVR) - How to Avoid Comprehensive Error Rate Testing Contractor (CERT) Errors	Common errors and guidelines.

Title	Description
Ambulance Services	Coverage information and billing guidelines.
Dear Ordering/Referring Physician Letter	Letter for Ordering and Referring Physician Compliance.
International Normalized Ratio Home Monitoring	Documentation and coverage guidelines.
Provider Mailing Addresses and Points of Contact for CERT Requests	How to update contact information for Noridian and CERT RC.
Surgical Pathology Medical Documentation Letter	Letter resource to Ordering/Referring Physicians for documentation Requirements.

Last Updated Jul 10 , 2026