Thank you @BillM223 for details.
I talked to HSA custodian on 03-Feb-2020 and they would be sending me two 1099-SA forms. I believe first one would be normal distribution and second is "excess contribution" distribution type.
I myself had transferred back from HSA account into checkin account in 2019 (immediately next day) but did not notify bank since I was unaware of tax implications.
Since now I informed to HSA custodian before end of tax filing date (with extension) and what would be value on form 5498-SA in Box-2? Would it be still including "excess contribution"?
