T78.121S — Other adverse food reaction due to egg with reactivity to baked egg, sequela
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.
- External ocular photography is covered when ordered by an authorized/referring provider to document, diagnose, or monitor an ocular condition and when medical record documentation supports medical necessity.
- External ocular photographs are covered to track changes in a patient's ocular condition provided changes are documented in writing and compared to prior photographs when available.
- Technical (TC) and professional (26) components of external ocular photography are payable under Part B when billed with the appropriate modifier and performed in allowable places of service as specified by Medicare.
- Allergy testing is covered when the medical record contains documented history obtained prior to testing that indicates the possible presence of allergy.
6 Active Policies
A57531 — Billing and Coding: Allergy Testing
J09
L33261 — Allergy Testing
J09
A56558 — Billing and Coding: Allergy Testing
J12
L36241 — Allergy Testing
J12
A57068 — Billing and Coding: Ocular Photography - External
Related Codes
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