---
{
  "title": "FHIR Profiling: Binding",
  "description": "Binding is used to define an allowed set of values for an element.",
  "date": "2025-04-11",
  "author": "Ivan Bagrov",
  "reading-time": "2 min",
  "tags": [
    "FHIR Profiling",
    "FHIR Standard"
  ]
}
---
## FHIR Binding Strength in Profiles

[FHIR Profiling](https://www.health-samurai.io/articles/fhir-profiling) Binding is used to define an allowed set of values for an element.

For example, to limit the value of a patient’s `maritalStatus` field, the following profile can be described:


```javascript
resourceType: StructureDefinition
url: http://example.org/fhir/StructureDefinition/patient-profile
name: patient-profile
derivation: constraint
type: Patient
status: active
kind: resource
abstract: false
differential:
  element:
	- id: Patient.maritalStatus
  	  path: Patient.maritalStatus
  	  binding:
           strength: required
           valueSet: http://hl7.org/fhir/ValueSet/marital-status
```

See also: [FHIR Additional Bindings](/blog/fhir-additional-bindings) and [FHIR Profiling](/blog/fhir-profiling).