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# medicationConceptIdentifier

The identifier of the medication concept the system associates with this dose event.

```
@NSCopying var medicationConceptIdentifier: HKHealthConceptIdentifier { get }
```

## Discussion

The system uses this identifier to link the dose event back to its [`HKMedicationConcept`](/documentation/HealthKit/HKMedicationConcept) object.

---

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