428.23
Acute on chronic systolic heart failure
The ICD-9 code for acute on chronic systolic heart failure is 428.23.
Legacy code — retired October 1, 2015ICD-10-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents.
View ICD-9 → ICD-10 crosswalk for 428.23 →