Convert ICD-10 Code I50.23 to ICD-9

Source ICD-10 Code Target ICD-9 Code
I50.23
Acute on chronic systolic (congestive) heart failure
428.23
Ac on chr syst hrt fail
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.
I50.23
Acute on chronic systolic (congestive) heart failure
428.23
Ac on chr syst hrt fail
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
I50.23
Acute on chronic systolic (congestive) heart failure
428.0
CHF NOS
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.

ICD-10 to ICD-9 crosswalk for code I50.23 - acute on chronic systolic (congestive) heart failure based on the most recent General Equivalence Mappings (GEMS) information.