I have used the word, "implied" in my reply. The basis of my reply is that there is restriction against column of rate of GST "5% (with no ITC)" .There is no such restriction against higher rate i.e. 18 %. Normally when you pay at higher rate whether it is pre-GST era or post GST era, input service credit/ITC is allowed. In GST full credit of ITC has been allowed whereas it was not so in pre-GST period. There is nothing specific entry to the effect that (with 18% ITC is allowed)". Board should have specifically mentioned against the column--Rate of GST 18% ITC is alllowed. There are some entries of 5% where ITC has been allowed.
If you want to be tension free, you may writ to your jurisdictional Range Officer or seek clarification direct from the Board and if no satisfactory response is received, you may opt for Advance Ruling authorit