Icd 10 code for acute exacerbation of systolic chf July 8, 2019 16 32 64 128 Icd 10 code for acute on chronic systolic chf exacerbation Icd 10 code for acute chf exacerbation unspecified Icd 10 code acute on chronic chf exacerbation Icd 10 acute on chronic chf exacerbation