The LRI_PH_Component states in the Usage Notes for the OBX segment that "For coded lab test results SNOMED CT shall be used as the standard coding system for this field (OBX-5) if an appropriate SNOMED CT code exists."

And the Usage Note for the LRI_PH_Component in Section 9.11.1 says "For coded test results SNOMED CT shall be used, if a suitable code exist."

These two statements are consistent, but early in Section 9.11.1 it says "This guide recommends the use of SNOMED CT for senders, with a reminder, that a future release of this guide will require the use of SNOMED CT for result reporting."

This third statement seems to be in conflict as it only "recommends" SNOMED. Perhaps the statement that this is for "senders" is important, but if so, the various statements should be clarified.