CPT code 95125 denotes a single encounter in an allergen immunotherapy program in which the clinician administers two or more injections of allergenic extract during the same visit. This code is used nationally to document multi-injection allergy shot sessions that are part of a gradual buildup toward clinical tolerance and ongoing maintenance therapy. Accurate coding of these encounters is important for consistent clinical documentation, patient safety monitoring, and payer adjudication across commercial and public plans.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise national overview of how 95125 is applied clinically, common service settings, and the types of benchmarks and policy issues typically relevant to immunotherapy billing. The publication outlines expected uses of the code, common modifiers used in practice (listed separately), and the clinical context that drives utilization of multi-injection sessions.

This document is intended to inform clinical coders, practice managers, and policy analysts about the role of 95125 in allergen immunotherapy workflows, typical sites where services occur, and the topics to review when assessing coverage, claims processing, or program design. Data not available in the input will be stated where applicable.