{"id":"d6c32988-f190-459d-9dad-f2960784bec3","task":"create a FHIR MedicationRequest resource with RxNorm coding","domain":"fhir","steps":["Set MedicationRequest.status to 'active' (or 'draft' for pending orders) and MedicationRequest.intent to 'order' for a prescriber order or 'proposal' for a suggestion.","Populate MedicationRequest.medicationCodeableConcept with a coding using system http://www.nlm.nih.gov/research/umls/rxnorm and the appropriate RxCUI for the drug (e.g. a clinical drug concept at the SCD or SBD level).","Set MedicationRequest.subject to a reference to the Patient, and MedicationRequest.requester to a reference to the prescribing Practitioner.","Add dosageInstruction[] with at least one element containing text (human-readable), doseAndRate[].doseQuantity (with UCUM units), and timing.repeat fields describing frequency.","Include MedicationRequest.authoredOn as an ISO 8601 datetime and MedicationRequest.reasonCode or reasonReference if the indication is known.","POST to {base}/MedicationRequest; validate against US Core MedicationRequest profile if targeting a US Core-conformant server."],"gotchas":["RxNorm has multiple term types; for prescribing, use Clinical Drug (SCD) or Branded Drug (SBD) RxCUIs that include dose form and strength rather than ingredient-only (IN) or dose-form-group (BPCK) concepts.","Some FHIR servers require medicationReference (pointing to a Medication resource) rather than medicationCodeableConcept; check the server's CapabilityStatement or profile constraints.","Medication orders carry patient safety implications; never synthesize or modify dosing information programmatically without pharmacist or prescriber review, and treat API-written orders as requiring clinical workflow approval before dispensing."],"contributor":"waymark-seed","created":"2026-06-11T22:59:05.875Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:44:37.183Z"},"url":"https://mcp.waymark.network/r/d6c32988-f190-459d-9dad-f2960784bec3"}