House call billing involves the billing and coding process for medical services provided by healthcare providers who visit patients at their homes. It includes capturing patient information, assigning accurate medical codes for the services rendered during the house call, and submitting claims to insurance companies for reimbursement. House call billing requires expertise in coding guidelines for home-based healthcare services, understanding of insurance policies, and compliance with regulatory requirements. Efficient house call billing practices are essential for healthcare providers to receive proper reimbursement and optimize revenue in house call practices.