428 Heart failure (428.0-428.9) ICD-9-CM
The 428.0-428.9 block classified 428 heart failure with 15 legacy diagnosis codes. None remain valid for claim submission; each code below links to its reference page with the official ICD-10-CM replacement under the CMS General Equivalence Mappings.
Retired Code Set
ICD-9-CM stopped being valid for U.S. claims with dates of service on or after October 1, 2015, when ICD-10-CM replaced it. Use this index for historical lookups and crosswalking; for current coding, start from the ICD-10-CM codes list or the ICD-9 / ICD-10 converter.
Legacy Codes in the 428.0-428.9 Block 15 codes
None of these codes remain valid for claim submission. Each code page shows its ICD-10-CM replacement under the CMS General Equivalence Mappings.
- 428.0 CHF NOS
- 428.1 Left heart failure
- 428.20 Systolic hrt failure NOS
- 428.21 Ac systolic hrt failure
- 428.22 Chr systolic hrt failure
- 428.23 Ac on chr syst hrt fail
- 428.30 Diastolc hrt failure NOS
- 428.31 Ac diastolic hrt failure
- 428.32 Chr diastolic hrt fail
- 428.33 Ac on chr diast hrt fail
- 428.40 Syst/diast hrt fail NOS
- 428.41 Ac syst/diastol hrt fail
- 428.42 Chr syst/diastl hrt fail
- 428.43 Ac/chr syst/dia hrt fail
- 428.9 Heart failure NOS
Questions About This Page
Are the 428.0-428.9 codes still billable?
No. Every code in this block became invalid for U.S. claims after September 30, 2015. Each code page linked above shows the ICD-10-CM replacement CMS assigned in the General Equivalence Mappings, and the ICD-9 / ICD-10 converter translates any of them directly.
What did the 428.0-428.9 block classify?
The block classified 428 heart failure with 15 codes in the final ICD-9-CM release. It sat under Diseases of the circulatory system (390–459) in the legacy hierarchy.
Related References
Source: final CMS ICD-9-CM release (version date October 1, 2014). Retired from U.S. claims after September 30, 2015.
