It's been discovered that some GDML lab results will be silently missed when uploading lab hl7 files. The GDML Handler first checks for duplicates before parsing and saving the lab. The check is accomplished by searching for the accession number in Hl7TextInfo table. If the search returns a record the parsing is stopped and success is returned. The problem is that the sql query searches for the accession number using like '%accessionnumber%'. That means any uploaded lab whose accession number is a sub string of a lab already processed will be skipped. The user, whether mule or a human being will be lead to belive that the file was successfully processed because the GDML Handler returns success regardless whether it was a duplicate or not. This affects RELEASE_15 and MASTER. The fix is to change the search query from using like to equals without using the wildcards.