http://hl7.org/fhir/us/core/StructureDefinition/us-core-direct|8.0.0-ballot
This email address is associated with a [\"Direct Secure Messaging\"](https://directtrust.org/what-we-do/direct-secure-messaging) service. This extension can only be used on contact points where the system = 'email'
| Name | Flags | Card | Type | Description & Constraints |
|---|---|---|---|---|
Extension | 0..1 | Email is a \"Direct\" email | ||
| ?..? | ||||
| 1..1 | ||||
| 1..1 | boolean |