Heart Failure, Except End Stage and Acute
Under the CMS-HCC V28 risk adjustment model (PY2026 Medicare Advantage), HCC 226 carries a community non-dual aged RAF of 0.36, and 34 payable ICD-10-CM diagnosis codes map to it. In the V28 hierarchy it is superseded by HCC 221, HCC 222, HCC 223, HCC 224, HCC 225 when a more severe category in the same disease group is also present.
RAF factors
The community factor varies by Medicaid and originally-disabled status; the institutional factor applies to long-term-institutional members. These are the CMS-HCC V28 PY2026 relative factors.
V28 hierarchy
Trumped by: HCC 221, HCC 222, HCC 223, HCC 224, HCC 225 (a more severe category in the same disease group supersedes this one).
Supersedes: HCC 227 (this category is counted instead of these when they co-occur).
ICD-10-CM codes that map to HCC 226 (34)
Payable diagnosis codes that map to this category under CMS-HCC V28 PY2026. Open any code for its full description, HCC mapping, and coding guidance.
- I09.81Rheumatic heart failure
- I11.0Hypertensive heart disease with heart failure
- I13.0Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
- I13.2Hypertensive heart and chronic kidney disease with heart failure and with stage 5 chronic kidney disease, or end stage renal disease
- I27.0Primary pulmonary hypertension
- I27.1Kyphoscoliotic heart disease
- I27.20Pulmonary hypertension, unspecified
- I27.21Secondary pulmonary arterial hypertension
- I27.22Pulmonary hypertension due to left heart disease
- I27.23Pulmonary hypertension due to lung diseases and hypoxia
- I27.24Chronic thromboembolic pulmonary hypertension
- I27.29Other secondary pulmonary hypertension
- I27.81Cor pulmonale (chronic)
- I27.83Eisenmenger's syndrome
- I27.89Other specified pulmonary heart diseases
- I27.9Pulmonary heart disease, unspecified
- I28.0Arteriovenous fistula of pulmonary vessels
- I28.1Aneurysm of pulmonary artery
- I28.8Other diseases of pulmonary vessels
- I28.9Disease of pulmonary vessels, unspecified
- I50.1Left ventricular failure, unspecified
- I50.20Unspecified systolic (congestive) heart failure
- I50.22Chronic systolic (congestive) heart failure
- I50.30Unspecified diastolic (congestive) heart failure
- I50.32Chronic diastolic (congestive) heart failure
- I50.40Unspecified combined systolic (congestive) and diastolic (congestive) heart failure
- I50.42Chronic combined systolic (congestive) and diastolic (congestive) heart failure
- I50.810Right heart failure, unspecified
- I50.812Chronic right heart failure
- I50.814Right heart failure due to left heart failure
- I50.82Biventricular heart failure
- I50.83High output heart failure
- I50.89Other heart failure
- I50.9Heart failure, unspecified
Frequently asked questions
What is CMS-HCC V28 category 226?
HCC 226 is "Heart Failure, Except End Stage and Acute", a payment Hierarchical Condition Category in the CMS-HCC V28 risk adjustment model (100% phase-in for payment year 2026). 34 payable ICD-10-CM codes map to it.
What is the RAF weight for HCC 226?
The community non-dual aged relative factor for CMS-HCC V28 category 226 is 0.36. The exact factor varies by enrollment segment (community Medicaid and originally-disabled status, and institutional); the full segment table is published in the CMS V28 Rate Announcement.
How many ICD-10-CM codes map to HCC 226?
34 payable ICD-10-CM diagnosis codes map to CMS-HCC V28 category 226 (Heart Failure, Except End Stage and Acute) for payment year 2026.
Which categories trump HCC 226 in the V28 hierarchy?
HCC 226 is superseded by HCC 221 (Heart Transplant Status/Complications), HCC 222 (End Stage Heart Failure), HCC 223 (Heart Assist Device/Artificial Heart), HCC 224 (Acute on Chronic Heart Failure), HCC 225 (Acute Heart Failure (Excludes Acute on Chronic)). When a more severe category in the same disease group is documented, it is counted instead of HCC 226.
Source: CMS published ICD-10-CM mapping file plus CMS-HCC v28 PY2026 model software.