T78.121A — Other adverse food reaction due to egg with reactivity to baked egg, initial encounter
ICD-10-CM
Prior Authorization
No Prior Auth Required
Code is covered without prior authorization (high confidence)
Documentation Required
- All documentation must be maintained in the patient's medical record and made available to the contractor upon request; every page must be legible and include appropriate patient identification (e.g., complete name, dates of service).
- The medical record must include the legible signature of the physician or non-physician practitioner responsible for and providing the care.
- The medical record must support the selected ICD-10-CM code(s) and the submitted CPT/HCPCS code must accurately describe the service performed.
- Prior to testing there must be evidence that a history was obtained indicating possible allergy and that attempts were made to narrow the area of investigation so that the minimal necessary skin tests were selected.
Key Coverage Criteria
- Allergy testing is covered when the medical record documents a history indicating the possible presence of allergy and the clinician selected a minimal number of tests/antigens based on patient-specific history and physician examination.
- Allergy testing is covered when the medical record documents the test(s) used, the interpretation(s), and objective measurement of reaction size (wheal and erythema in mm) or a standardized in vivo grading system.
- Allergy testing is covered when the medical record contains documented history obtained prior to testing that indicates the possible presence of allergy.
- Allergy testing is covered when the history and examination show that attempts were made to narrow the area of investigation so that the minimal number of necessary skin tests will be performed.
- Allergy testing is covered when the selection of antigens for testing is explicitly based on the patient-specific history and physician or non-physician practitioner examination.
- Percutaneous prick/puncture (scratch, puncture, prick) skin testing is medically reasonable and necessary for evaluation of IgE-mediated hypersensitivity to inhalants, foods, Hymenoptera (stinging insects), chemicals, and specific drugs (e.g., penicillins, macromolecular agents).
4 Active Policies
A57531 — Billing and Coding: Allergy Testing
J09
L33261 — Allergy Testing
J09
A56558 — Billing and Coding: Allergy Testing
J12
L36241 — Allergy Testing
J12
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