| # | | Name | Source | Ver | Description |
| 1 | | A specific purpose for which this ContactPoint dataType would be used | fhir.org.nz.ig.base#current | R4 | A specific purpose for which this ContactPoint dataType would be used. An example would be to indicate that this ContactPoint is used for video conferencing. |
| 2 | | AuthorizedByPatient | fhir.org.nz.ig.northernregion#current | R4 | If true, then indicates that the patient as authorized the use of this address or telecom to contact them. |
| 3 | | Confidential | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | Expresses the access policy associated with the element. |
| 4 | | Contact Purpose | hl7.fhir.au.base#current | R4 | This extension applies to the [ContactPoint](http://hl7.org/fhir/datatypes.html#ContactPoint) data type and is used to represent the purpose for which a contact can be reached, e.g. after hours or billing. |
| 5 | | ContactPoint Area | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | The area/zone/city code that, in some areas, may be omitted when dialing locally within the zone. This extension is used when a system wishes to designate specific parts of a phone number (and potentially place constraints on which components must be present and how they're filled in). |
| 6 | | ContactPoint Comment | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | A comment associated with the ContactPoint such as usage notes or pronunciation. |
| 7 | | ContactPoint Country | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | The country code as defined by the ITU. This extension is used when a system wishes to designate specific parts of a phone number (and potentially place constraints on which components must be present and how they're filled in). |
| 8 | | ContactPoint Extension | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | The number that may be dialed within a private phone network or after successfully connecting to a private phone network. This extension is used when a system wishes to designate specific parts of a phone number (and potentially place constraints on which components must be present and how they're filled in). |
| 9 | | ContactPoint Local | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | The local number that must be dialed to connect within the area/city/zone. This extension is used when a system wishes to designate specific parts of a phone number (and potentially place constraints on which components must be present and how they're filled in). |
| 10 | | eCH-0046 Email Category | ch.fhir.ig.ch-core#current | R4 | Extension to define the e-mail category according to eCH-0046 |
| 11 | | eCH-0046 Internet Category | ch.fhir.ig.ch-core#current | R4 | Extension to define the internet category according to eCH-0046 |
| 12 | | eCH-0046 Phone Category | ch.fhir.ig.ch-core#current | R4 | Extension to define the phone category according to eCH-0046 |
| 13 | | EDI Address | fhir.org.nz.ig.base#current | R4 | Represents an Electronic Data Interchange (EDI) address. It is intended as an extension on ContactPoint.system, with the system value being 'other'. The value of the extension is the EDI supplier, the actual EDI address is the value element. Note that a new extension 'messaging address' is preferred. |
| 14 | | Extension UK Core Other Contact System | fhir.r4.ukcore.stu1#1.0.4 | R4 | Information about other contact methods. |
| 15 | | HCIM ContactInformation TelecomType | nictiz.fhir.nl.stu3.zib2017#2.2.15 | R3 | Defines a specific coded value for the concept TelecomType used in HCIM ContactInformation, to be able to use the required HCIM value set. |
| 16 | | Preferred | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | Flag denoting whether parent item is preferred - e.g., a preferred address or telephone number. |
| 17 | | RORConfidentialityLevel | ans.fhir.fr.ror#0.1.1 | R4 | Extension créée dans le cadre du ROR pour définir le niveau de restriction de l'accès aux attributs de la classe Contact. |
| 18 | | RORTelecomCommunicationChannel | ans.fhir.fr.ror#0.1.1 | R4 | Extension créée dans le cadre du ROR spécifiant le canal ou la manière dont s'établit la communication |
| 19 | | RORTelecomConfidentialityLevel | ans.fhir.fr.ror#0.1.1 | R4 | Extension créée dans le cadre du ROR qui permet de définir le niveau de restriction de l'accès aux attributs de la classe Télécommunication. |
| 20 | | RORTelecomUsage | ans.fhir.fr.ror#0.1.1 | R4 | Extension créée dans le cadre du ROR qui précise l'utilisation du canal de communication |
| 21 | | TEL address | hl7.fhir.uv.extensions.r4#1.0.0 | R4 | A V3 compliant, RFC 3966 conformant URI version of the telephone or fax number. |
| 22 | | US Core Direct email Extension | hl7.fhir.us.core#current | R4 | 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' |
| 23 | | ValidatedByPatient | fhir.org.nz.ig.northernregion#current | R4 | If true, then indicates that the patient as indicated that the data is correct. Defined by healthAlliance |
| 24 | | VhDir Contactpoint Availabletime | hl7.fhir.uv.vhdir#current | R4 | Time period when the contact point is to be used |
| 25 | | VhDir Contactpoint Viaintermediary | hl7.fhir.uv.vhdir#current | R4 | Represents an external point of contact responsible for handling communications with this entity |