Infectious disease billing involves the billing and coding process for medical services related to the diagnosis and treatment of infectious diseases. It includes capturing patient information, assigning accurate medical codes specific to infectious disease diagnoses and treatments, and submitting claims to insurance companies for reimbursement. Infectious disease billing requires expertise in coding guidelines for infectious diseases, understanding of insurance policies, and compliance with regulatory requirements. Efficient infectious disease billing practices are crucial for healthcare providers to receive proper reimbursement and optimize revenue in infectious disease practices.