OUL^R21: Unsolicited laboratory observation

Unsolicited laboratory observation. It's sent as an OUL message (Unsolicited laboratory observation message) with the OUL_R21 message structure.

Message type

OUL · Unsolicited laboratory observation message

Trigger event

R21

Message structure

OUL_R21 · per HL7's current table 0354; older versions sometimes paired events differently

In MSH-9

OUL^R21^OUL_R21

Source: HL7 Terminology (THO) 7.4.0, published by HL7 International under CC0. Check your trading partner's specification for the values they actually send.