Convert ICD-10 Code F84.2 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
F84.2 Rett's syndrome		330.8 Cereb degen in child 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 F84.2 - rett's syndrome based on the most recent General Equivalence Mappings (GEMS) information.