Relevant FHIR resource for Patient History

Hello,

I’m new to FHIR and wanted to maintain Patient’s history (Chief complaint, History of present illness, review of systems and past, family & social history for calculating EM level ).

Can you please suggest relevant FHIR resource for EM level?

Thanks

What is EM Level?

Many calculated values use Observation.

Evaluation and Management (EM) Coding is a calculated level based on Patient’s history, examination and Medical Decision Making documentations.
I’m trying to find relevant FHIR resource to maintain calculated value.

The value would generally go in Observation.