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

<a id="for"></a>

## for
**Description:** The product which this ingredient is a constituent part of

**Type:** reference

**Expression:** Ingredient.for

**Path:** Ingredient.for

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-for


<a id="function"></a>

## function
**Description:** A classification of the ingredient identifying its precise purpose(s) in the drug product. This extends the Ingredient.role to add more detail. Example: Antioxidant, Alkalizing Agent

**Type:** token

**Expression:** Ingredient.function

**Path:** Ingredient.function

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-function


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

## identifier
**Description:** An identifier or code by which the ingredient can be referenced

**Type:** token

**Expression:** Ingredient.identifier

**Path:** Ingredient.identifier

**Standards Status:** normative

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


<a id="manufacturer"></a>

## manufacturer
**Description:** The organization that manufactures this ingredient

**Type:** reference

**Expression:** Ingredient.manufacturer.manufacturer

**Path:** Ingredient.manufacturer

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-manufacturer


<a id="role"></a>

## role
**Description:** A classification of the ingredient identifying its purpose within the product, e.g. active, inactive

**Type:** token

**Expression:** Ingredient.role

**Path:** Ingredient.role

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-role


<a id="substance"></a>

## substance
**Description:** Reference to a resource (by instance)

**Type:** reference

**Expression:** Ingredient.substance.code.reference

**Path:** Ingredient.substance.code.reference

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-substance


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

## substance-code
**Description:** Reference to a concept (by class)

**Type:** token

**Expression:** Ingredient.substance.code.concept

**Path:** Ingredient.substance.code.concept

**Standards Status:** normative

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


<a id="substance-definition"></a>

## substance-definition
**Description:** Reference to a resource (by instance)

**Type:** reference

**Expression:** Ingredient.substance.code.reference

**Path:** Ingredient.substance.code.reference

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-substance-definition


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

## status
**Description:** The status of this ingredient. Enables tracking the life-cycle of the content

**Type:** token

**Expression:** Ingredient.status

**Path:** Ingredient.status

**Standards Status:** normative

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


<a id="strength-concentration-numerator"></a>

## strength-concentration-numerator
**Description:** Ingredient concentration strength numerator (mainly for use in strength-concentration-ratio)

**Type:** quantity

**Expression:** Ingredient.substance.strength.concentration.ofType(Ratio).numerator

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-concentration-numerator


<a id="strength-concentration-denominator"></a>

## strength-concentration-denominator
**Description:** Ingredient concentration strength denominator (mainly for use in strength-concentration-ratio)

**Type:** quantity

**Expression:** Ingredient.substance.strength.concentration.ofType(Ratio).denominator

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-concentration-denominator


<a id="strength-concentration-ratio"></a>

## strength-concentration-ratio
**Description:** Ingredient concentration strength as ratio, numerator and denominator parameter pair

**Type:** composite

**Expression:** Ingredient.substance.strength.concentration.ofType(Ratio)

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-concentration-strength-ratio


<a id="strength-presentation-numerator"></a>

## strength-presentation-numerator
**Description:** Ingredient presentation strength numerator (mainly for use in strength-presentation-ratio)

**Type:** quantity

**Expression:** Ingredient.substance.strength.presentation.ofType(Ratio).numerator

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-presentation-numerator


<a id="strength-presentation-denominator"></a>

## strength-presentation-denominator
**Description:** Ingredient presentation strength denominator (mainly for use in strength-presentation-ratio)

**Type:** quantity

**Expression:** Ingredient.substance.strength.presentation.ofType(Ratio).denominator

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-presentation-denominator


<a id="strength-presentation-ratio"></a>

## strength-presentation-ratio
**Description:** Ingredient presentation strength as ratio, numerator and denominator parameter pair

**Type:** composite

**Expression:** Ingredient.substance.strength.presentation.ofType(Ratio)

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-presentation-strength-ratio


<a id="strength-concentration-quantity"></a>

## strength-concentration-quantity
**Description:** Ingredient concentration strength as quantity

**Type:** quantity

**Expression:** Ingredient.substance.strength.concentration.ofType(Quantity)

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-concentration-strength-quantity


<a id="strength-presentation-quantity"></a>

## strength-presentation-quantity
**Description:** Ingredient presentation strength as quantity

**Type:** quantity

**Expression:** Ingredient.substance.strength.presentation.ofType(Quantity)

**Standards Status:** normative

**URL:** http://hl7.org/fhir/build/SearchParameter/Ingredient-presentation-strength-quantity