Open library of FHIRPATH expressions for medical decision support systems

[projkov]

Goals
Develop a service that contains a library of ready-made and working FHIRPATH expressions that could be used in DSS. The user can register on the service and freely publish and use the open expressions of others. If the user is a bearer of medical knowledge, then he can apply for profile verification by attaching the relevant documents. All expressions published to verified users are marked “Added by a verified user.” Each registered user gets the opportunity to vote for any expression. All expressions are available via an open API without restrictions, with the ability to filter. In addition, it should be possible to create queries in the community, for example: “It is required to implement an expression for diagnosing arterial hypertension of the 3rd degree,” “It is required to implement an expression for a proposal to prescribe the drug Capoten, if the patient has registered increases in systolic blood pressure above 180.”

For use in projects, it is proposed to create a backend in which you can first specify which rules you want to load. The backend will need access so that it can work with data from the FHIR server.

To use the capabilities of the backend, it is proposed to implement JS hooks for making requests to the server and pulling out possible recommendations for filters. For example, it will be possible to separately request recommendations when prescribing medications, examinations, and diagnoses.

In general, the use case will look like this:

1. Expressions are created in the community;
2. On the backend, the user selects in advance which expressions to use;
3. A request is made from the frontend, including the user ID;
4. On the backend, resources are selected for the context based on the patient ID and the system runs through FHIRpath expressions. If there is a match, the server responds in JSON format.