National Health Data Dictionary (NHDD) Pocket


NHDD serves as the authoritative source for indicator and information standards for clinicians, lab technicians, pharmacists, researchers and administrators to communicate and exchange health information to ensure that meaning is not lost as data is shared or aggregated into reporting systems. The NHDD harmonizes data definitions from multiple programs and facilitates mapping of definitions to international standards.

Geographic scope


Countries implemented
Level of coverage
Implementing partners
First year of implementation
Operating System
Programming Language
Software included
Standards for interoperability