Convert ICD-10 Code N21.0 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
N21.0 Calculus in bladder		594.0 Blad diverticulum calcul
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.
N21.0 Calculus in bladder		594.1 Bladder calculus 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 N21.0 - calculus in bladder based on the most recent General Equivalence Mappings (GEMS) information.