For AI agents: the documentation index is at /docs/payerbox/llms.txt. A Markdown version of this page is available at /docs/payerbox/data-integration/drug-formulary/formulary-identifiers.md or by requesting it with the Accept: text/markdown header.
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Formulary Identifiers

Datasets

Part of the Drug Formulary feed, built to Da Vinci PDex US Drug Formulary STU 2.1.0. The feed's data conventions apply.

DatasetUS Drug Formulary STU 2.1.0 target elementCardinality
formulary_identifiersidentifier of the Formulary1..*

The profile requires at least one identifier per formulary. formulary_id on the formularies row is always the first; this dataset carries every other identifier the formulary is known by, each with the namespace it belongs to.

formulary_identifiers

One row per additional identifier of a formulary.

ColumnRequiredFormat / valuesExample
formulary_idYeskey from formulariesFORM-2027-A
identifier_valueYesthe identifier as issued00027113
identifier_systemYesURI of the namespace that issued ithttp://cms.gov/medicare/formulary-id
is_deletedIf retractingtrue retracts this rowtrue
  • A row is identified by formulary_id, identifier_system and identifier_value together; there is no separate key.
  • The 8-digit CMS formulary id from your HPMS submission is the identifier every Part D formulary should carry here. CMS publishes no URI for it; use one namespace consistently across formularies.
  • formulary_id itself is not repeated here. It is published as the first identifier automatically.

These resources are served by Patient Access.

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