G - Direct rollover to a qualified retirement plan, tax-sheltered annuity, 457(b) plan or IRA.
J - Early distribution from a Roth IRA, no known exception to penalty applies.
Q - Qualified distribution from a Roth IRA
T - Roth IRA distribution due to death or disability, or taxpayer has reached age 59 1/2, but the payer does not know if the five-year holding period was met.