Pathology lab billing involves the billing and coding procedures specific to laboratory services performed on patient samples for diagnostic purposes. It includes tasks such as capturing patient information, accurately assigning pathology procedure codes, and submitting claims to insurance companies for reimbursement. Pathology lab billing requires expertise in coding guidelines specific to laboratory tests and procedures, understanding of insurance policies, and compliance with regulatory requirements. Effective pathology lab billing practices are crucial for healthcare providers to receive proper reimbursement and optimize revenue for pathology laboratory services.