Which of the following may NOT be included in a mailed follow-up letter?

Including a previous diagnosis in a mailed follow-up letter may not be appropriate because it can compromise patient privacy and confidentiality. Healthcare organizations are bound by strict regulations, such as HIPAA (Health Insurance Portability and Accountability Act), which aim to protect patients' sensitive information. Providing a detailed medical history, particularly one that includes past diagnoses, could inadvertently allow unauthorized individuals access to confidential health information if the letter were to be misplaced or opened by someone who should not have access to that data.

On the other hand, future appointment details, instructions for follow-up, and a patient satisfaction survey are typically appropriate components of a follow-up letter. These items enhance communication between the provider and the patient, ensuring that the patient is informed about their care plan and has the opportunity to provide feedback regarding their experience, all while following proper privacy protocols.