95117

Professional services for allergen immunotherapy not including provision of allergenic extracts; 2 or more injections

Allergen immunotherapy, commonly referred to as allergy shots, is a long-term treatment strategy aimed at decreasing a patient's sensitivity to specific environmental allergens, venoms, or other hypersensitivity triggers. The Current Procedural Terminology (CPT) code 95117 specifically represents the professional services rendered during the administration of two or more allergen immunotherapy injections. Crucially, this code does not encompass the provision or preparation of the allergenic extract itself; it strictly covers the clinical administration, patient assessment prior to injection, and the mandatory post-injection observation period. This service is typically utilized when a patient's customized allergy serum is either prepared by a different physician, such as a specialist who formulates the vial and ships it to the patient's primary care provider for administration, or when the provision of the antigen is billed separately using specific antigen preparation codes like CPT 95165. The clinical workflow for CPT 95117 begins with a rigorous verification process. The healthcare provider must verify the patient's identity, the correct specific multi-dose vial, and the designated concentration. The provider conducts a brief clinical assessment to ensure the patient is not currently experiencing an exacerbation of asthma, acute illness, or excessive local reactions from the prior dose, as these factors could necessitate a dose adjustment or withholding the injection. Once cleared, the provider administers two or more subcutaneous injections, typically in the posterior aspect of the upper arm. The use of two or more injections is common in patients receiving multiple separate formulations, such as a mixture for perennial allergens like dust mites and pet dander and a separate mixture for seasonal pollens, or when treating venom hypersensitivity requiring multiple distinct venom extracts. Following the injections, the patient enters a mandatory, closely monitored observation period, generally lasting thirty minutes. This observation is a critical component of the professional service, as allergen immunotherapy carries an inherent risk of severe, life-threatening systemic reactions, including anaphylaxis. The clinical environment must be fully equipped with emergency medications such as epinephrine auto-injectors, oxygen, and resuscitation equipment. The provider must remain immediately available to intervene if an adverse reaction occurs. At the conclusion of the observation period, the injection sites are inspected for excessive local induration or erythema, and the patient's respiratory and systemic status is confirmed to be stable prior to discharge. Documentation must detail the specific antigens administered, the exact doses and volumes, the anatomical sites of the injections, the duration of the observation period, and the patient's clinical status upon discharge.

Clinical Indications

  • Allergic rhinitis (seasonal or perennial) unresponsive to environmental controls and pharmacotherapy.
  • Allergic asthma requiring desensitization to reduce exacerbations and medication reliance.
  • Hymenoptera (stinging insect) venom hypersensitivity to prevent life-threatening anaphylaxis.
  • Allergic conjunctivitis directly correlated with specific environmental triggers.
  • Atopic dermatitis where specific aeroallergens are established as major exacerbating factors.

Procedure Steps

  1. Verify the patient's identity and cross-reference with the specific allergen extract vials.
  2. Conduct a pre-injection assessment to evaluate for acute illness, asthma exacerbation, or severe local reaction from the prior dose.
  3. Determine the appropriate dosage and volume for each of the two or more extracts based on the patient's current treatment phase (build-up or maintenance) and previous tolerance.
  4. Ensure the clinical setting is equipped with emergency resuscitation equipment and medications, including epinephrine.
  5. Prepare the injection sites with an alcohol swab, typically utilizing the posterior aspects of the right and left upper arms.
  6. Administer the extracts via separate subcutaneous injections.
  7. Observe the patient in the clinical setting for a minimum of 30 minutes to monitor for systemic allergic reactions or anaphylaxis.
  8. Evaluate the injection sites post-observation for excessive local reactions (erythema, induration) and document findings.
  9. Discharge the patient with instructions on recognizing delayed reactions and managing mild localized symptoms.

Coding Guidelines

  • Use CPT 95117 when reporting the administration of two or more allergen immunotherapy injections.
  • Do not report CPT 95117 in conjunction with CPT 95115 (single injection) on the same date of service.
  • This code represents only the professional service (injection and observation); do not use it to bill for the preparation or provision of the antigen.
  • If the physician also prepares and provides the extract, report the appropriate extract preparation code (e.g., 95165) in addition to 95117.
  • An Evaluation and Management (E/M) code should not be reported on the same day unless a significant, separately identifiable E/M service is performed, which must be appended with modifier 25.
  • Ensure documentation includes the number of injections, the exact dosage given, the observation time, and the patient's post-observation status.

Associated ICD-10 Codes