DaVinci Payer Data Exchange (PDex) US Drug Formulary
1.1.0 - STU 1.1

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## Search Parameters

### Search Parameters Required by This Implementation Guide

Resource | Parameter | Type | Example
--- | --- | --- | ---
List (CoveragePlan) | _id | token | `GET [base]/List?_id=[id]`
List (CoveragePlan) | identifier | token | `GET [base]/List?identifier=[system]|[code]`
List (CoveragePlan) | item | reference | `GET [base]/List?item=[item-reference]`
List (CoveragePlan) | status | token | `GET [base]/List?status=[status]`
MedicationKnowledge (FormularyDrug) | _id | token | `GET [base]/MedicationKnowledge?_id=[id]`
MedicationKnowledge (FormularyDrug) | code | token | `GET [base]/MedicationKnowledge?code=[system]|[code]`
MedicationKnowledge (FormularyDrug) | DrugName | string | `GET [base]/MedicationKnowledge?DrugName=[name]`
MedicationKnowledge (FormularyDrug) | DrugPlan | string | `GET [base]/MedicationKnowledge?DrugPlan=[plan]`
MedicationKnowledge (FormularyDrug) | DrugTier | token | `GET [base]/MedicationKnowledge?DrugTier=[system]|[code]`

- Search parameters for a particular resource can be used in any combination.
- Search parameters, such as DrugName, DrugPlan, and DrugTier, will be changed in a future version of this Implementation Guide to be compliant with FHIR best practices of lower-case parameter names, like 'drug-name', 'drug-plan', and 'drug-tier'.