Billing and Coding: Allergen Immunotherapy (AIT) with Subcutaneous Immunotherapy (SCIT)

CPT 95165 covers the physician preparation and provision of antigen extracts for subcutaneous allergen immunotherapy when prepared by an MD/DO who has examined the patient and established a treatment plan; administration/injection is billed separately. Billable doses should reflect the number of 1 cc aliquots represented by the vial volume (standard 10 cc vial = maximum 10 doses), supplies should not exceed a 12-month supply, and maintenance claims require modifier EJ; same-day visits with injection codes require documentation of a separately identifiable service.

"Report CPT 95165 for the physician's preparation and provision of antigen extracts for subcutaneous allergen immunotherapy (non-venom antigens)."

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