Mapping of FHIR Medication Request resource to the OMOP DRUG_EXPOSURE Table

This document details the design and decisions for implementing mapping of FHIR Medication Request resource to the OMOP DRUG_EXPOSURE Table.

The following references were used to inform this implementation.

References for Patient

General Mapping Resources	This is the fhir-to-omop documentation for general FHIR and OMOP information.
FHIR Medication Request (STU3)	FHIR Documentation for the Medication Request resource. The following version have been considered. Medication Request (Current Build) Medication Request (R4) Medication Request (STU3)
DRUG_EXPOSURE	This is the OMOP documentation for the DRUG_EXPOSURE table.

Mapping Details

Mapping of FHIR Medication Request resources to OMOP DRUG_EXPOSURE records is relatively straight forward. Mapping is done in the OmopDrugExposureBuilder class. The OmopPersonBuilder constructs DRUG_EXPOSURE Data Value Objects (DVOs) using the MedicationRequestParser class to parse FHIR Patient resources

Testing Results

Testing Results 2022-04-08

All test are passing except for those shown below. We have confirmed the failing results are consistent with the test data set we are currently using.

Passing Tests