The Medical Document Management (MDM) message provides information about new or updated notes or documents. An MDM message can be created in relation to or independently of an order. There are 11 different MDM message trigger events. These events always include the status of the document and can also include the accompanying document itself:
MDM messages are typically used by Radiology departments to communicate provider transcriptions, order information and document contents. These messages either update other healthcare systems to identify available reports in the transcription system and can also provide the documents contents. The most commonly used MDM message is the MDM-T02, similar to an HL7 ORU Result Message, notifying a system of the creation of a document and providing the document contents.
Below is an example of an HL7 version 2.3 MDM^T02 message:
MSH|^~\&|MESA_OP|XYZ_HOSPITAL|iFW|ABC_HOSPITAL|20090130123||MDM^T02|20090130123|P|2.3|||NE|
EVN|T02|200901301235|
PID|||||DOE^JOHN||19920115|M||||||||||G83186|005729288| PV1||1|CE||||12345^WILLIS^LAYLA^H|||||||||||
TXA|1|HP^History & Physical|TX|200901151010|||||||||||||DO||AV|
OBX|1|TX|||
OBX|2|TX|||
OBX|3|TX|||
OBX|4|TX|||Name: TEST,TEST
OBX|5|TX|||MR #: 123006
TEST HOSPITAL||||||P|||||| Morrisville, Vermont 05661||||||P||||||
OBX|6|TX|||Physician:JAMES CLEA DOB:
Date:01/13/09||||||P||||||
Sex: M Age: 19
HISTORY & PHYSICAL||||||P||||||
Room #: 039A||||||P||||||
Acct. #: G8318||||||P 07/13/1989 Admit
OBX|7|TX|||Physician: KAEDING J Stay Type: I/P D/C||||||P||||||
OBX|8|TX|||Physician: KEITH P||||||P||||||
OBX|9|TX|||CC: Dizziness and weakness with elevated sugars.||||||P|||
OBX|10|TX|||HPI: This is a 19-year-old man with multiple admissions for poorly controlled||||||P||||||
Segment |
Description |
| MSH |
Message Header. This segment is a mandatory part of an MDM message, and contains information about the message sender and receiver, the date and time that the message was created. This segment is required. |
| EVN |
Event Type. Communicates the event that occurred in order for the message to be generated. This segment is a crucial part of the data flow, as it indicates where and when a message is sent based on the type of event. This is a required segment. |
| PID |
Patient Identification. An MDM message is a patient-specific message type, and must be linked to a particular patient. Therefore, patient information such as the patient identifier, name, date of birth, etc. must be included in an MDM. This segment is required. |
|
PV1 |
Patient Visit. Contains information about patient visit details such as servicing facility, attending doctor, and visit ID. This segment is required. |
|
TXA |
Document Notification. Communicates information specific to a transcribed document as a result of a status change. This segment does not include the document contents and is required.
|
|
{OBX} |
Observation Segment. Contains the document contents. This segment is required and is often repeating segments in an MDM. |
|
[ ] = optional, { } = repeating |
|
For more information on implementing various HL7 message types, please refer to the HL7 Messaging Standard Implementation Guides corresponding to your required version.
Other HL7 Message Types:
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In practice, you'll find that everyone formats HL7 messages slightly different, even though it has a standard structure in place. With iNTERFACEWARE's integration engine, you can ensure that all data is normalized as intended for full compliance.
What happens when the source destination is sending one version of HL7, while the recipient's system can only handle an older version of HL7? With Iguana you can convert HL7 versions on the fly.
As you've seen, HL7 messages can contain a lot of information -- sometimes much more than you need. Simplify things using Iguana, by extracting the data from the specific HL7 fields you need.
The HL7 organization is always working on improving the standard and new versions will keep coming in the future. Ensure that your data always remains compatible with iNTERFACEWARE's integration engine, Iguana.