Which of the following refers to procedures and services provided without proper authorization from the payer?

The term that accurately describes procedures and services provided without proper authorization from the payer is "Unauthorized Services." This designation highlights the absence of approval from the insurance company or payer prior to the delivery of care, which can lead to denial of payment for the services rendered.

In revenue cycle management, obtaining authorization is crucial because it ensures that the services are covered under the patient's insurance plan. If services are performed without this authorization, the provider may face financial losses due to non-reimbursement. Understanding this concept is essential for healthcare providers to effectively manage their revenue cycles and maintain financial stability.

The other terms do not accurately represent the concept of lacking payer authorization. Approved Services would indicate that proper authorization was obtained prior to service delivery. Cleared Services suggest that they have passed through all necessary checks or authorizations, while Default Services does not have any recognized meaning in this context related to authorization and revenue cycle processes. Therefore, "Unauthorized Services" is the most appropriate choice.