The NHS is owed £62million by so-called 'health tourists' who have yet to settle their bills, despite receiving thousands of pounds worth of care in Britain's hospitals. The  bill, built up over five years and across 40 different trusts, suggests previous estimates on the amount owed were far below the mark. The NHS is thought to act as a magnet to people from overseas because it will always care for someone who needs urgent treatment. The bill, built up over five years and across 40 different trusts, suggests previous estimates on the amount owed were far below the mark . An investigation by the Sunday Times has found people who owe money for dialysis, chemotherapy and bone marrow transplants. The newspaper revealed King's College Hospital is owed a staggering £17,852,037 - more than £10million more than Guy's and St Thomas' Hospital Foundation, which has then second highest amount outstanding. One person alone is understood to owe more than £420,000 at Guy's and St Thomas' for treatment for hemophilia. The investigation also uncovered a new mother who posed alongside Health Minister Daniel Poulter to mark the reopening of a maternity ward has yet to pay the bill she incurred. Caroline Nyadzayo, 34, owes £3,000, more than two years after she gave birth at Norfolk and Norwich University Trust. The size of the unpaid bill comes as the NHS is forced to make a series of unpopular decisions to save money as it struggles to balance its budget. King's College Hospital, pictured, is owed a staggering £17,852,037 - far more than any other trust . This week, it was revealed the Cancer Drugs Fund for England had cut 19 life-extending treatments, because they cost too much. Similarly, new guidelines from Nice suggest doctors start prescribing medication to people with type 2 diabetes which experts have warned will 'put the NHS back a decade' - all because the ones currently prescribed are too expensive.
King's College Hospital, London, is owed a staggering £17,852,037 . One foreign patient owes more than £420,000 for treatment for haemophilia . Comes as the NHS is looking to cut costs in the service it provides .