Convert ICD-10 Code T71.29XS to ICD-9

Source ICD-10 Code		Target ICD-9 Code
T71.29XS Asphyx due to being trap in oth low oxygen environment, sqla		909.4 Late eff cert ext cause
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 T71.29XS - asphyxiation due to being trapped in other low oxygen environment, sequela based on the most recent General Equivalence Mappings (GEMS) information.