The Allergies component allows providers to understand patient allergies and their reactions. The Allergies component leverages summarized allergy histories, including allergies recorded by other providers.

Users can:

  • See a deduplicated* list of allergies reported by your organization and other providers
  • See a chronological history of allergies recorded by your organization and other providers
  • View source documents that mentioned each allergy

*Note: Some allergies information does not come with codes from standard terminologies (e.g., RxNorm), which may reduce the impact of deduplication. We will consider improving our deduplication over time.

Allergies List

The Allergies list shows allergies from your organization and outside provider records, summarized by RxNorm code (where available) so users have a simple, deduplicated allergies list to review.

  • Note: the Allergies component will be blank if Zus did not find allergies in a patient's medical history or if your organization has never requested medical history for a patient through Zus.

Allergies History

Allergies History is available for all allergies from your organization and from outside providers.


The summary is a quick view of the most recent available information for an allergy.


History shows all individual records in the ZAP associated with a given allergy. Expanding a record provides additional available detail such as the reporting organization, onset date, and reaction. Clicking on the "Source Document" link will show the clinical document the allergy was extracted from.