Convert ICD-10 Code P27.9 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
P27.9 Unsp chronic resp disease origin in the perinatal period		770.7 Perinatal chr resp dis
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 P27.9 - unspecified chronic respiratory disease originating in the perinatal period based on the most recent General Equivalence Mappings (GEMS) information.