What is a unique sequential number assigned by Medisoft?

The unique sequential number assigned by Medisoft is the case number. In a medical office setting, case numbers are pivotal for organizing and tracking patient visits, treatments, and billing. Each case number is uniquely linked to a specific patient's treatment or diagnosis, allowing for proper documentation and retrieval of patient information.

By using case numbers, healthcare providers can efficiently manage multiple visits or ongoing treatments for a patient without confusion. This system enhances the accuracy of medical records and facilitates better communication among healthcare providers and administrative staff.

The other options represent different concepts within medical billing and practice management. An account number typically refers to the patient's overall account with the medical office, encompassing multiple case numbers. Billing codes are used to specify diagnoses and treatments for insurance reimbursement but do not serve as unique identifiers for cases within the Medisoft system. Thus, the case number stands out as the correct answer for being the unique identifier assigned to patient interactions in Medisoft.