Convert ICD-10 Code H47.42 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
H47.42 Disorders of optic chiasm in (due to) neoplasm		377.52 Opt chiasm dis/neopl NEC
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

ICD-10 to ICD-9 crosswalk for code H47.42 - disorders of optic chiasm in (due to) neoplasm based on the most recent General Equivalence Mappings (GEMS) information.