What is the significance of the 'first date of service' in healthcare?

The 'first date of service' in healthcare is significant because it establishes the starting point for coverage under an insurance policy. This date is crucial for both the provider and the patient, as it indicates when the patient's benefits begin. Understanding this date helps in billing and is essential for meeting the insurance requirements, ensuring that treatments provided on or after this date are covered according to the terms of the policy. Coverage for any claims submitted will be evaluated based on this date, as it affects whether the services rendered fall within the active time frame of the policy.