Toxicology lab billing involves the billing and coding procedures specific to laboratory services related to the detection and analysis of toxic substances in patient samples. It includes tasks such as capturing patient information, accurately assigning toxicology-specific medical codes, and submitting claims to insurance companies for reimbursement. Toxicology lab billing requires expertise in coding guidelines for toxicology tests, understanding of insurance policies, and compliance with regulatory requirements. Efficient toxicology lab billing practices are crucial for healthcare providers to receive proper reimbursement and optimize revenue for toxicology laboratory services.