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

# FHIR FHIRPath Function: elementDefinition

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

`elementDefinition() : collection`

Returns the FHIR element definition information for each element in the input collection. If the input collection is empty, the return value will be an empty collection.

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[Back to FHIR FHIRPath](/fhir-fhirpath)