The Department of Health says it won't provide costs for each type of procedure undertaken at Noble’s Hospital.
It says introducing a costing system would be largely irrelevant because there is only one hospital on the Island.
The information is released by NHS hospitals in the UK but the department says that is because they are competing against each other for healthcare business.
MHK Howard Quayle raised the issue in Tynwald earlier this month saying a system of benchmarking was needed.
He says taxpayers must know where the £170 million budget is being spent:
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