What does blue eye symbol mean according to the ICD-10 book

The International Classification of Diseases, 10th Revision (ICD-10) book is a medical classification system used for coding diagnoses and diseases. It does not contain any specific information about the meaning of symbols such as a blue eye. The ICD-10 primarily focuses on providing standardized codes for identifying and classifying diseases, disorders, injuries, and other health conditions. For information about the meaning of a blue eye symbol, you may need to refer to a different source such as cultural or historical references, symbolism, or context-specific interpretations.