---
type: "search-params"
title: "MedicationStatement Search Parameters"
resource: "MedicationStatement"
---
# MedicationStatement Search Parameters

<a id="adherence"></a>

## adherence
**Description:** Returns statements based on adherence or compliance

**Type:** token

**Expression:** MedicationStatement.adherence.code

**Path:** MedicationStatement.takenAsOrdered

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/MedicationStatement-adherence


<a id="category"></a>

## category
**Description:** Returns statements of this category of MedicationStatement

**Type:** token

**Expression:** MedicationStatement.category

**Path:** MedicationStatement.category

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/MedicationStatement-category


<a id="code"></a>

## code
**Description:** Return statements of this medication code

**Type:** token

**Expression:** MedicationStatement.medication.concept

**Path:** MedicationStatement.medication.concept

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/MedicationStatement-code


<a id="effective"></a>

## effective
**Description:** Date when patient was taking (or not taking) the medication

**Type:** date

**Expression:** MedicationStatement.effective.ofType(dateTime) | MedicationStatement.effective.ofType(Period)

**Path:** MedicationStatement.effective[x]

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/MedicationStatement-effective


<a id="encounter"></a>

## encounter
**Description:** Returns statements for a specific encounter

**Type:** reference

**Expression:** MedicationStatement.encounter

**Path:** MedicationStatement.encounter

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/MedicationStatement-encounter


<a id="identifier"></a>

## identifier
**Description:** Return statements with this external identifier

**Type:** token

**Expression:** MedicationStatement.identifier

**Path:** MedicationStatement.identifier

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/MedicationStatement-identifier


<a id="medication"></a>

## medication
**Description:** Return statements of this medication reference

**Type:** reference

**Expression:** MedicationStatement.medication.reference

**Path:** MedicationStatement.medication.reference

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/MedicationStatement-medication


<a id="patient"></a>

## patient
**Description:** Returns statements for a specific patient.

**Type:** reference

**Expression:** MedicationStatement.subject.where(resolve() is Patient)

**Path:** MedicationStatement.subject

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/MedicationStatement-patient


<a id="source"></a>

## source
**Description:** Who or where the information in the statement came from

**Type:** reference

**Expression:** MedicationStatement.informationSource

**Path:** MedicationStatement.informationSource

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/MedicationStatement-source


<a id="status"></a>

## status
**Description:** Return statements that match the given status

**Type:** token

**Expression:** MedicationStatement.status

**Path:** MedicationStatement.status

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/MedicationStatement-status


<a id="subject"></a>

## subject
**Description:** The identity of a patient, animal or group to list statements for

**Type:** reference

**Expression:** MedicationStatement.subject

**Path:** MedicationStatement.subject

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/MedicationStatement-subject