They will have to pay 30 percent more for 10 years, once MediShield Life replaces the current MediShield scheme in November this year.
The MOH says those affected make up less than 1 percent of all Singapore citizens and Permanent Residents.
Health Minister Gan Kim Yong said a “fair and compassionate approach” has been adopted in identifying those who will be be subject to additional premiums.
“Most of them would not be able to purchase insurance and would have been bearing high medical costs without any insurance protection over the past years. With MediShield Life, they can now be covered for life and receive help with their large medical bills.”
Those identified were shortlisted after the CPF Board tapped existing medical information in Government databases and medical institutions, which is allowed under the MediShield Life Scheme Act.
The MOH explained that they have to pay additional premiums because their conditions require intensive intervention to treat or manage, or have a high risk of future complications or recurrence.
These include conditions such as cancer, stroke and degenerative diseases such as Parkinson’s and muscular dystrophy.
Also on the list are liver cirrhosis, schizophrenia and chronic conditions with serious complications, such as diabetes with kidney complications.
Some individuals with pre-existing conditions will not need to pay extra, however, if their conditions are less serious or well-controlled.
For example, they may have well-controlled diabetes, hypertension with no complications, osteoarthritis, fibroids or cysts, for instance. People hospitalised due to one-off events such as accidents or dengue.
Medical conditions that develop after the start of one’s MediShield cover are not considered to be pre-existing conditions.
For example, someone who joined MediShield in 2005 and who had a heart attack in 2010, for instance, will not pay additional premiums under MediShield Life because the heart attack occurred after he had joined MediShield.