Final Answer:
The statement "ICD-9th revision has been in publication since 1975." is True.
So, the correct option is a.
Explanation:
The International Classification of Diseases, 9th Revision (ICD-9) was indeed published in 1975 by the World Health Organization (WHO) and was used for several decades as a standard system for classifying diseases and health conditions. It was eventually succeeded by ICD-10, which was adopted by various countries for healthcare coding purposes.
The International Classification of Diseases, 9th Revision (ICD-9), was indeed established by the World Health Organization (WHO) in 1975. This classification system played a crucial role in categorizing and coding diseases and health conditions, providing a standardized method for healthcare professionals worldwide.
ICD-9 remained in use for several decades, serving as a reliable framework for health data reporting and statistical purposes. However, as medical knowledge and healthcare practices evolved, the need for a more advanced and comprehensive coding system arose.
Subsequently, ICD-10 was introduced and eventually succeeded ICD-9. ICD-10 offered a more detailed and nuanced approach to disease classification, accommodating the expanding understanding of medical conditions. Various countries adopted ICD-10 as the new standard for healthcare coding, reflecting the global effort to enhance the accuracy and specificity of medical coding systems.
The transition from ICD-9 to ICD-10 marked a significant advancement in health information management, facilitating more precise and detailed documentation of diseases and health-related issues.