The Department of Health has said there is no timeframe for the Government policy of 2015 to move the Rotunda Hospital to Connolly Hospital Blanchardstown.
Assistant Secretary at the Department Tracey Conroy told the Joint Committee on Health, that no money has been spent on the project to date and that the planned move is some distance in the future.
She said it remained Government policy under co-location.
Sinn Féin TD David Cullinane said the plan was "wishy-washy and pie in the sky", and that nine years on, with no money spent on it, the department needed to accept it was never going to happen.
He said that if the priority is to develop a critical care unit at the Rotunda, it does not make sense to go ahead with the move to Connolly.
Last week, planning permission for a €100m critical care 80-bed unit to be developed at the Rotunda was overturned by An Coimisiún Pleanála.
Ms Conroy told the committee that the Minister for Health was deeply disappointed with this development and that the Master of the Rotunda is exploring all options.
Labour Spokesperson of Health Marie Sherlock called on the HSE to make clear what the short- and medium-term future of the Rotunda Hospital is and that it will remain in Dublin 1.
She added that clinical structures between the Mater and Rotunda hospitals are intensifying and co-location is essentially happening there.
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Meanwhile, the HSE has said there have been no new serious adverse events at Portiuncula University Hospital in Co Galway.
Chief Clinical Officer Dr Colm Henry said that of the 12 independent external reviews of care, the remaining five are expected by the end of next month.
He told the committee that an external team remains in place at Portiuncula.
Since last October, the hospital has not been accepting bookings from women with high-risk pregnancies.
Fianna Fáil TD Martin Daly said that the €100m spent on capital developments for maternity services was miniscule, in terms of the overall health budget.
He said there were many deficits in the maternity infrastructure around the country.
The Joint Committee on Health discussed the implementation of the National Maternity Strategy 2016-2026, which is in its final year.
Dr Henry also told the Committee that a number of maternity services have challenges in recruiting and retaining key staff.
He said that this is particularly so for some regional maternity services.
Dr Henry said that despite this, the maternity workforce had increased by more than 550 in ten years.
He told the Committee that investment had funded over 567 Whole Time Equivalent health professionals, including 44 consultants and 382 extra nurses and midwives.
Dr Henry also said that Ireland's maternity population had changed significantly over the past decade.
He said that families are starting later, clinical complexity has increased and services now support a more diverse population.
Dr Henry said that rising maternal age, higher Body Mass Index, underlying health conditions and the introduction of a public fertility service may further increase complexity and demand.
Soc Dems publish 20-point GP service plan
Meanwhile, the Social Democrats has published its 20-point plan to improve access to GPs, address costs and increase capacity.
The plan includes extending free GP care to all age groups by 2030 and establishing a new GP contract and a salaried GP model, with doctors directly employed by the HSE, specifically for underserved communities.
Social Democrats health spokesman and TD for Cork South-Central Pádraig Rice told RTÉ's Morning Ireland that GP care in Ireland is an outlier in Europe in terms of costs of visits and waiting times.
He said there was a looming crisis in GP services and that costs should not be a barrier and should be removed to make basic care in the community accessible.
Mr Rice called on the Government to commit to Sláintecare's free GP care plan and roll out universal healthcare, adding that there was a need for updated costings on Sláintecare.
He also called for a 'DEIS' type system to be put in place to see more GPs in disadvantaged communities and rural areas.
Deputy Rice said there are health inequalities due to a lack of GPs in those communities.
He added that there was a need for HSE primary care centres to be rolled out across the country.
He said that many doctors want a better work-life balance, and that the 20-point plan outlines the need to invest in healthcare and prevention.
