Hi Amelia,
I believe it’s an error in SEND IG example table.
SDTM IG document explains a usage TSSEQ as similar to other domains, but with uniqueness within TSPARMCD instead of USUBJID (POOLID).
Also see SEND IG page 215:
“7. The TSSEQ variable is a unique identifier for each record and is Required to identify each record as unique in cases where the same TSPARMCD is used within the dataset. The TSSEQ variable must be populated for all records within the TS dataset. In cases where a TSPARMCD value is only used once, TSSEQ may equal ‘1.’ In cases where a TSPARMCD value is used more than once, TSSEQ may equal ‘1’ in the first record where the TSPARMCD value is used, ‘2’ in the second record where the TSPARMCD value is used, ‘3’ in the third record where the TSPARMCD value is used, etc.”
Kind Regards,
Sergiy