Convert ICD-10 Code H70.12 to ICD-9

Source ICD-10 Code Target ICD-9 Code
H70.12
Chronic mastoiditis, left ear
383.1
Chronic mastoiditis
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 H70.12 - chronic mastoiditis, left ear based on the most recent General Equivalence Mappings (GEMS) information.