FHIR MedicationStatement

The prescriber order counterpart to MedicationStatement. While MedicationStatement captures what was taken, MedicationRequest records what was prescribed. Reconciliation engines compare these two profiles to identify intentional discrepancies (e.g., a clinically justified dose change) versus unintentional discrepancies (errors).

• Represents an order from a prescriber to a dispenser
• Contains dosage instruction, dispense request, and substitution flags
• Status values: active, on-hold, cancelled, completed, stopped, draft
• Linked to MedicationStatement via the basedOn reference

Records the physical supply of a medication to a patient—the act of dispensing at a pharmacy or hospital. This profile bridges the gap between what was prescribed and what the patient actually received.

• Captures whenHandedOver, quantity dispensed, and days supply
• Contains dosageInstruction for label directions
• Critical for verifying fill history against patient-reported statements
• Use status of completed to confirm the patient picked up the medication

Documents the actual administration of a medication to a patient by a clinician—typically in inpatient settings. This is the ground truth of what was given during an encounter.

• Includes effectiveDateTime for precise administration timing
• Captures dosage with route, dose, and rate
• Status not-done records refused or withheld doses
• Reconciled against MedicationStatement to detect omission errors during transitions of care

The central drug definition referenced by all medication workflow profiles. This resource identifies the specific drug product, ingredient, or package using standardized coding systems.

• Identified by code bound to RxNorm, SNOMED CT, or NDC
• Can represent branded, generic, or compounded preparations
• form element specifies tablet, capsule, injection, etc.
• ingredient array enables active ingredient matching for duplicate therapy detection

A curated collection resource used to assemble the Best Possible Medication History (BPMH) from multiple MedicationStatements. The List provides a snapshot of a patient's medications at a point in time for reconciliation.

• mode of snapshot captures the medication profile at admission or discharge
• Each entry references a MedicationStatement with a flag for verification status
• Supports source attribution by tracking which entries came from patient interview vs. pharmacy fill data
• Enables the formal reconciliation comparison against admission orders

Records a patient's hypersensitivity or adverse reaction to a specific substance, including medications. This resource is essential for cross-referencing against MedicationStatement to prevent prescribing a documented allergen.

• code identifies the allergen using RxNorm or SNOMED CT
• reaction array captures manifestations like rash, anaphylaxis
• criticality of high triggers allergen cross-reactivity checks
• Reconciliation engines validate that no active MedicationStatement conflicts with a confirmed allergy