---
type: "codesystem"
title: "Message Transport"
codesystem: "message-transport"
---
# Message Transport

- **Official URL**: http://hl7.org/fhir/message-transport
- **Version**: 6.0.0
- **Status**: active
- **Name**: MessageTransport
- **Title**: Message Transport
- **Publisher**: HL7 (FHIR Project)
- **Description**: The protocol used for message transport.
- **Case Sensitive**: true
- **Content**: complete

## Concepts

| Code | Display | Definition |
| --- | --- | --- |
| http | HTTP | The application sends or receives messages using HTTP POST (may be over http: or https:). |
| ftp | FTP | The application sends or receives messages using File Transfer Protocol. |
| mllp | MLLP | The application sends or receives messages using HL7's Minimal Lower Level Protocol. |

## CodeSystem XML



```xml
<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="message-transport"/>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="normative"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
    <valueInteger value="5"/>
  </extension>
  <url value="http://hl7.org/fhir/message-transport"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.4.1080"/>
  </identifier>
  <version value="6.0.0"/>
  <name value="MessageTransport"/>
  <title value="Message Transport"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2020-12-28T16:55:11+11:00"/>
  <publisher value="HL7 (FHIR Project)"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/fhir"/>
    </telecom>
    <telecom>
      <system value="email"/>
      <value value="fhir@lists.hl7.org"/>
    </telecom>
  </contact>
  <description value="The protocol used for message transport."/>
  <caseSensitive value="true"/>
  <valueSet value="http://hl7.org/fhir/ValueSet/message-transport"/>
  <content value="complete"/>
  <concept>
    <code value="http"/>
    <display value="HTTP"/>
    <definition value="The application sends or receives messages using HTTP POST (may be over http: or https:)."/>
  </concept>
  <concept>
    <code value="ftp"/>
    <display value="FTP"/>
    <definition value="The application sends or receives messages using File Transfer Protocol."/>
  </concept>
  <concept>
    <code value="mllp"/>
    <display value="MLLP"/>
    <definition value="The application sends or receives messages using HL7's Minimal Lower Level Protocol."/>
  </concept>
</CodeSystem>
```