Waringstown, last year's beaten finalists, and Instonians have been given byes into the second round of next year's competition with four fewer teams taking part.
Only the top eight (instead of 10) teams in the NCU and North West are involved - the rest go into the National Cup - but the incentive for reaching the semi-finals is a bye into the second round the following year.
In the match of the first round, Donemana's Ricky-Lee Dougherty must take the NW double winners to Clontarf, the Leinster league champions.
Irish Cup first round: North County v CIYMS, The Hills v Civil Service North, Balbriggan v Drummond, Clontarf v Donemana, Bready v Cork County, Fox Lodge v North Down, Brigade v Leinster, Coleraine v Railway Union, Carrickfergus v Phoenix, Muckamore v Ardmore, Lisburn v Eglinton, Co Galway v Pembroke. Byes: Merrion, YMCA, Waringstown, Instonians. Games on May 13
National Cup first round: Rush v Ballyspallen, Laois v Cregagh, Dundrum v Downpatrick, Sion Mills v Saintfileld, Burndennett v Armagh, Killyclooney v Academy, Glendermott v Malahide Bonds Glen v North Kildare, Holywood v Terenure, Laurelvale v Newbuildings, Derriaghy v St Johnston, Cliftonville v Strabane.