Is there an easy way to get all OBX's of an OBR?

[jcblitz]

I'm new to both mirth and hl7. I searched the forum already but couldn't find anything relevant to my question, but is there an easy way to get all OBX messages under a particular OBR? Does that even make sense?

[eeebee13]

Re:Is there an easy way to get all OBX's of an OBR?

Here's one way to get each of the OBX segments in a message, via a Javascript transformer step:

for each (obx in msg..OBX)
{
...
var observationValue = obx['OBX.5']['OBX.5.1'].toString();
...
}