SQL Query Help

I have a column called rxbatch and the data is like mmddST(example-0926ST), which is the monthdateletterST.
It may also contain data like 'COST' 'FIRST'.
Now how to extract only those batches which are of the format mmddST.
The table is Hrxlabels and the column is rxbatch
Please advice.
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
this should be a starter:
WHERE rxbatch like '[0-1][0-9][0-2][0-9]ST'

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Scott PletcherSenior DBACommented:
    rxbatch LIKE '[01][0-9][0123][0-9]ST%' --% is optional if additional char(s) never appear after the main pattern
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Microsoft SQL Server 2008

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