In the field of health information
systems there are plenty of examples
of legacy systems, designed to meet
specific needs of healthcare organizations.
Despite the urgent need of
collaboration, these systems were not
designed to interoperate with other
systems. Internationally, the most
widely used solution to solve the problem
of health information systems
interoperability is the design and
implementation of standard interfaces,
such as those proposed by Health
Level 7 (HL7). This article proposes
an HL7 Version 3 implementation
guide for the interoperability of clinical
information systems and public
health in Colombia
