The dispute concerns breaches of the national public service agreements
Health representatives belonging to the SIPTU trade union are being balloted for strike action in selected hospitals.
The dispute, involving support staff, concerns breaches of the national public service agreements - and their exclusion from concessions provided to other emergency department workers.
SIPTU health division organiser, Paul Bell, said: "Our members are fully committed to winning fair and equal treatment in the workplace.
"The failure of the HSE and Department of Health to resolve our concerns has put our members in an intolerable and inequitable situation."
The union say these issues include a failure by management to adhere to the fully binding provisions of the Lansdowne Road Agreement and Haddington Road Agreement.
"The most crucial elements that have not been adhered to include the reintroduction of a job evaluation scheme and the application of incremental credit to interns", Mr Bell added.
Other issues include the granting of concessions by the HSE and the Department of Health to nurses working in emergency departments, which have not been extended to other workers.
The balloting is due to take place on Monday, with the result expected to be announced on Monday February 13th.