| identifier | No | Identifier | Identifier for the ingredient |
| role | Yes | CodeableConcept | Ingredient role e.g. Active ingredient, excipient |
| allergenicIndicator | No | boolean | If the ingredient is a known or suspected allergen |
| manufacturer | No | Reference<Organization>[] | Manufacturer of this Ingredient |
| specifiedSubstance | No | MedicinalProductIngredientSpecifiedSubstance | A specified substance that comprises this ingredient |
| - id | No | string | Unique id for inter-element referencing |
| - extension | No | Extension[] | Additional content defined by implementations |
| - modifierExtension | No | Extension[] | Extensions that cannot be ignored even if unrecognized |
| - code | Yes | CodeableConcept | The specified substance |
| - group | Yes | CodeableConcept | The group of specified substance, e.g. group 1 to 4 |
| - confidentiality | No | CodeableConcept | Confidentiality level of the specified substance as the ingredient |
| - strength | No | MedicinalProductIngredientSpecifiedSubstanceStrength | Quantity of the substance or specified substance present in the manufactured item or pharmaceutical product |
| - id | No | string | Unique id for inter-element referencing |
| - extension | No | Extension[] | Additional content defined by implementations |
| - modifierExtension | No | Extension[] | Extensions that cannot be ignored even if unrecognized |
| - presentation | Yes | Ratio | The quantity of substance in the unit of presentation, or in the volume (or mass) of the single pharmaceutical product or manufactured item |
| - presentationLowLimit | No | Ratio | A lower limit for the quantity of substance in the unit of presentation. For use when there is a range of strengths, this is the lower limit, with the presentation attribute becoming the upper limit |
| - concentration | No | Ratio | The strength per unitary volume (or mass) |
| - concentrationLowLimit | No | Ratio | A lower limit for the strength per unitary volume (or mass), for when there is a range. The concentration attribute then becomes the upper limit |
| - measurementPoint | No | string | For when strength is measured at a particular point or distance |
| - country | No | CodeableConcept[] | The country or countries for which the strength range applies |
| - referenceStrength | No | MedicinalProductIngredientSpecifiedSubstanceStrengthReferenceStrength | Strength expressed in terms of a reference substance |
| - id | No | string | Unique id for inter-element referencing |
| - extension | No | Extension[] | Additional content defined by implementations |
| - modifierExtension | No | Extension[] | Extensions that cannot be ignored even if unrecognized |
| - substance | No | CodeableConcept | Relevant reference substance |
| - strength | Yes | Ratio | Strength expressed in terms of a reference substance |
| - strengthLowLimit | No | Ratio | Strength expressed in terms of a reference substance |
| - measurementPoint | No | string | For when strength is measured at a particular point or distance |
| - country | No | CodeableConcept[] | The country or countries for which the strength range applies |
| substance | No | MedicinalProductIngredientSubstance | The ingredient substance |
| - id | No | string | Unique id for inter-element referencing |
| - extension | No | Extension[] | Additional content defined by implementations |
| - modifierExtension | No | Extension[] | Extensions that cannot be ignored even if unrecognized |
| - code | Yes | CodeableConcept | The ingredient substance |
| - strength | No | [] | Quantity of the substance or specified substance present in the manufactured item or pharmaceutical product |
