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