Health minister Norman Lamb is urging individuals that have privately paid for care in the past to claim for NHS care-funding eligibility before the looming deadline.
Lamb has called for everyone that should have been assessed for NHS Continuing Healthcare funding, between 1 April 2011 and 31 March 2012, to put forward their case to NHS Continuing Healthcare Claims as soon as possible.
He said: "In March 2012 we asked the NHS to communicate this deadline as quickly and effectively as possible to local people through whatever means necessary.
"If someone or a loved one should have been assessed for eligibility for the period of care then they need to contact their local Primary Care Trust by Sunday 31 March."
The Department of Health set the 31 March deadline for private funders to claim for previously unassessed periods of care.
Claims cases will be considered against the framework applicable for the time period under review.
NHS Continuing Healthcare is for individuals who have been assessed as needing health care including; residential care homes, with or without nursing, or their own homes.
NHS funding will provides all the individual's assessed needs where eligible including accommodation in some cases.