Chronic diseases are long-term and rarely cured,
and have been identified as the leading cause of death
the world over [1]. Chronic diseases are associated
with huge medical care costs. Hence, effective chronic
disease management is mandatory for cost reduction
and quality care. Clinical information systems are
crucial components in such management. An
Electronic Medical Record (EMR) is the key
component of a clinical information system to capture
the longitudinal medical records of patients. An EMR
can reduce errors in data entry, ensure timely
accessibility of information by simultaneous multiple
users, can be used to support reasoning in decision
support systems, and can reduce care costs.
The knowledge representation of EMRs is very
important to ensure semantic interoperability and to