The HSE's Director General Tony O'Brien has ordered a report into the circumstances in which a woman was refused an abortion after claiming she was suicidal.
A statement this evening says the report will establish the full facts and sequence of events - as well as the care given to the woman who was denied a termination under the Protection of Life During Pregnancy Act.
Decisions taken by clinicians involved in the case will not be reviewed.
The woman's case has sparked renewed calls for a referendum on abortion.