---
type: "fhir-fhirpath-function"
title: "FHIR FHIRPath Function: resolve"
source: "source/fhirpath.html"
---

# FHIR FHIRPath Function: resolve

This page is part of **FHIR FHIRPath** (FHIR-specific extensions). Base spec lives at [FHIRPath](/fhirpath).

`resolve() : collection`

For each item in the collection, if it is a string that is a [uri](datatypes#uri) (or [canonical](datatypes#canonical) or [url](datatypes#url)), locate the target of the reference, and add it to the resulting collection. If the item does not resolve to a resource, the item is ignored and nothing is added to the output collection.

The items in the collection may also represent a Reference, in which case the `Reference.reference` is resolved. If the input is empty, the return value will be an empty collection.

Patient.managingOrganization.resolve().name
Observation.subject.where(resolve() is Patient)

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