Electronic Prescription Service (EPS) Implementation Guide

CodeSystems

A FHIR CodeSystem is a resource that declares the existence and describes a "master catalog" of medical codes and their definitions.

Externally defined CodeSystems used by EPS.

CodeSystem Description
Dictionary of Medicines and Devices (dm+d) The NHS standard for the catalog of medicines. The system is http://dmd.nhs.uk
SNOMED-CT Systematized Nomenclature of Medicine – Clinical Terms (SNOMED CT) is a comprehensive and standardised clinical vocabulary used in electronic health records. The system is http://snomed.info/sct
Unified Code for Units of Measure (UCUM) The Unified Code for Units of Measure (UCUM) is a coding system for representing units of measurement that enables unambiguous electronic communication between machines. The system is http://unitsofmeasure.org

CodeSystems managed by NHS England that are used exclusively by the EPS.

CodeSystem Provider System Type Description
EPS Issue Codes All Various failure reasons used by EPS
England EPS Prescription Status All Prescription workflow status codes
EPS Prescription Release Rejection Reason EPS Reason codes for why a prescription release request may not return any prescriptions
MedicationRequest Category Controlled Drug Prescribing Controlled drug schedules
NHSBSAPrescriberEndorsements Prescribing Prescribing endorsements, managed by the NHS BSA
MedicationRequest Status Reason History Prescribing Prescription cancellation response codes
MedicationRequest Status Reason Prescribing rescription cancellation request reason code
Dispensing Endorsement Dispensing Dispensing endorsements, managed by the NHS BSA
Prescription Charge Exemption Dispensing Prescription charge exemption categories
DMPrescriptionExemptionEvidence Dispensing Identifies if prescription charge exemption evidence has been seen
DMPrescriptionCharge Dispensing Identifies if the patient has paid a prescription charge, including how many charges
MedicationDispense Status Reason Dispensing Reason codes for recording a prescribed medication as not dispensed
EPS Dispense Return Reason Dispensing Return prescription reason codes
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