hl7

HL7 v2 parser/serializer in JavaScript

Currently supports ORU^R01 (Lab Results) HL7 v 2.3-2.5 messages.

Following segments are implemented:

• MSH - Message Header
• PID - Patient Identification
• OBR - Observation Request
• OBX - Observation Result
• NTE - Notes and Comments

Example

MSH|^~\&|SOME LAB|LAB|HOSPITAL|BLDG4|200202150930||ORU^R01|CNTRL-3456|P|2.4
PID|||555-44-4444||EVERYWOMAN^EVE^E^^^^L|JONES|19620320|F|||153 FERNWOOD DR.^^STATESVILLE^OH^35292||(206)3345232|(206)752-121||||AC555444444||67-A4335^OH^20030520
OBR|1|845439^GHH OE|1045813^GHH LAB|15545^GLUCOSE|||200202150730|||||||||555-55-5555^PRIMARY^PATRICIA P^^^^MD^^|||||||||F||||||444-44-4444^HIPPOCRATES^HOWARD H^^^^MD
OBX|1|SN|1554-5^GLUCOSE^POST 12H CFST:MCNC:PT:SER/PLAS:QN||^182|mg/dl|70_105|H|||F

[
    ["MSH",
    "|",
    "^~\&",
    [["SOME LAB"]]
    ...
    ],
    ["PID",
    [[""]],
    [[""]],
    [["555-444-4444"]],
 
    ]
]

Quick up and running quide

Prerequisites

• Node.js (v0.10+) and NPM
• Grunt.js

# you need Node.js and Grunt.js installed
# and MongoDB + Redis runnning

#install dependencies and build
npm install
grunt

Additional message types

Currently, Amida's Node-only HL7 library does not provide full HL7 coverage. For a more complete implementation built on the Java HAPI HL7 implementation, see https://github.com/MatthewVita/node-hl7-complete. Keep in mind that running this library requires the use of Java 7.

The HAPI library exports two functions, jsToHl7 and hl7ToJs. If you want to use the HAPI library as a drop-in for this library, replace parseString(data) with hl7ToJs(data, callback), and replace serializeJSON(data, options) with jsToHl7(dataType, data, callback).

Contributing

Contributors are welcome. See issues https://github.com/amida-tech/hl7/issues

Release Notes

See release notes here

License

Licensed under Apache 2.0