If the hospitals in a country do not use the ICD standard, disease classification would be inconsistent, making it difficult to share data among hospitals and leading to a lack of interoperability. This, in turn, would result in ineffective data analysis, wrong diagnosis, and poor treatment or disease management. Moreover, it would affect disease reporting to health authorities, limiting their ability to monitor and evaluate the morbidity and mortality of diseases. As a result, it would negatively impact health service planning and decision-making for health policies.
