"Notification was subsequently received from the Birmingham 2022 Organising Committee that he would not be allowed to participate.
"Commonwealth Games NI is currently seeking clarity on any potential appeal mechanism, and the athlete has been offered well-being support as he deals with this news."
Reid one of 18 men charged with drugs and firearms offences, all of which he denied
Reid, who was born in Bath and represented Great Britain before defecting to the Republic of Ireland in 2018, was picked by Athletics Ireland for last year's Olympics while he was awaiting trial, reaching the semi-finals of the 200m.
He was one of 18 men charged last year with drugs and firearms offences, all of which he denied.
He was convicted of allowing his flat in Bath to be used to produce cocaine and for receiving payment, which text messages showed amounted to £500 (NZ$971) a month.
He was found not guilty of concealing criminal property and of three firearms offences, which all related to items seized from his flat.
After winning his Commonwealth Games medal in April 2018 – Northern Ireland's first in athletics for 28 years – Reid reached the 200m final at the European Championships later that year in his first international appearance for Ireland.