Final answer:
'Medical necessary services' in healthcare are determined based on several factors, including medical guidelines, professional judgment, insurance coverage policies, and patient needs.
Step-by-step explanation:
'Medical necessary services' in healthcare are determined based on several factors. It typically refers to treatments, procedures, and interventions that are essential for the diagnosis, treatment, and prevention of illnesses or conditions. However, the determination of medical necessity can vary depending on factors such as medical guidelines, professional judgment, insurance coverage policies, and patient needs. For example, insurance companies may have specific criteria or guidelines that healthcare providers must meet to deem a service as medically necessary. In addition, healthcare providers may consider evidence-based medicine, clinical guidelines, and the individual patient's medical history and symptoms to determine the necessity of a specific service or treatment.