I also agree with Weerawan and others. ICD coding system is the international classification of diseases established by World Health Organization for reporting diseases and health conditions. It is the diagnostic classification aimed for local and national planning, public health policy, national resourcing assessment, and population research purposes. ICD defines the universe of diseases, disorders, injuries and other related health conditions, listed in a comprehensive, hierarchical fashion. ICD is used for monitoring of the incidence and prevalence of diseases, observing reimbursements and resource allocation trends, and keeping track of safety and quality guidelines. They also include the counting of deaths as well as diseases, injuries, symptoms, reasons for encounter, factors that influence health status, and external causes of disease.
If the hospitals in each country do not use the ICD standard, it will be difficult for health information exchange not only in one country but also international level in term of report and epidemiology eg.
– Storage, retrieval and analysis of health information for evidenced-based decision-making
– Sharing and comparing health information between hospitals, regions, settings and countries
– Comparing data set in the same location across different time periods