---
type: "fhirpath-function"
title: "FHIRPath Function: max"
function: "max"
category: "Aggregates"
section: "7.4"
source: "fhirpath/functions.json"
---
# FHIRPath Function: max
_No canonical section match found in index.md._
## Summary
- **Category**: Aggregates
- **Section**: `7.4`
- **Return Type**: `Integer | Long | Decimal | Quantity | Date | DateTime | Time | String`
- **Empty Input Result**: `empty`
- **Errors on Multiple Input**: `false`
## Description
Returns the maximum element in the input collection.
## Arguments
- none
## Type Mapping
- n/a
## Example
```fhirpath
(2 | 4 | 8 | 6).max() // 8
```