Does anyone know if you need to stop at check in to get a 'lounge pass' from SAS?

Flying tomorrow from BOS-CPH and we are checked in already - don't need to see the check in counters. Do we just show our boading passes at the LH lounge?

Yes, we are in business on our flight.

Thank you!

Edit: To answer my own question, no need for a pass. Checked in online, our precheck worked at security and a quick scan of boarding passes and we are in Lufthansa lounge.