Codification and representation of knowledge from structured and unstructured repositories have been the requirement for Expert Systems designing. Structured repositories remain open for knowledge extraction and representation for building a knowledgebase (KB). ICD-v10 (International Classification of Diseases), a structured repository, is the 10th revision of the collection of Disease codes and health related problems, symptoms, complaints and external causes of injury. ICD-v10 uses a 7-bit code to represent all diseases. The main focus of our research work is to propose new methods for capturing and representing these codes in the forms of Knowledge from Semantic Structured Repository with better materialization, quality and repository usage, along with logical unit and logical entailments to form conceptual relations among them. Apart from creating a new representation structure, this work gives direction on the storage of these structures as Knowledge Unit (KU). © 2015 The Authors.