| DESCRIPTION |
The integration control number (ICN) is used to uniquely identify a patient
patient. Further processing of the message is not possible until this problem
is resolved. Possible causes include a bad checksum stored in the PATIENT file
of either the sending or the receiving institution, or a message that was
corrupted during transmission.
within VHA. This patient's ICN has failed validation for one of the reasons
listed below:
NO MPI NODE or NO ICN: The patient has not been assigned an ICN. This should
not occur under normal circumstances.
BAD ICN CHECKSUM: The checksum accompanying the ICN in the message does not
match that stored in the ICN CHECKSUM field of the PATIENT file entry for this
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