CMS-HCC Risk Adjustment · Retired V24 Model 63 Codes
V24 HCC 79 (Archived Category) ICD-10-CM
HCC 79 is a payment category of the retired CMS-HCC V24 model, which last determined Medicare Advantage payment in 2025. The 63 ICD-10-CM codes below are its final mappings, kept for lookback analysis and RADV audit reference. Each code shows where it maps in the live V28 model.
✗ Retired model · not used for current Medicare Advantage paymentLast paid PY 2025 · kept for lookback and RADV reference
63
ICD-10-CM Codes
63
Still Risk-Adjust in V28
0
No V28 Successor
PY 2025
Last Paid Year
CMS-HCC V24
Archived Codes of V24 HCC 79 63 codes
63 of 63 shown
- G40.001 Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, with status epilepticus now HCC 201
- G40.009 Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, not intractable, without status epilepticus now HCC 201
- G40.011 Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable, with status epilepticus now HCC 201
- G40.019 Localization-related (focal) (partial) idiopathic epilepsy and epileptic syndromes with seizures of localized onset, intractable, without status epilepticus now HCC 201
- G40.101 Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, with status epilepticus now HCC 201
- G40.109 Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, not intractable, without status epilepticus now HCC 201
- G40.111 Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, with status epilepticus now HCC 201
- G40.119 Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with simple partial seizures, intractable, without status epilepticus now HCC 201
- G40.201 Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable, with status epilepticus now HCC 201
- G40.209 Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, not intractable, without status epilepticus now HCC 201
- G40.211 Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, with status epilepticus now HCC 201
- G40.219 Localization-related (focal) (partial) symptomatic epilepsy and epileptic syndromes with complex partial seizures, intractable, without status epilepticus now HCC 201
- G40.301 Generalized idiopathic epilepsy and epileptic syndromes, not intractable, with status epilepticus now HCC 201
- G40.309 Generalized idiopathic epilepsy and epileptic syndromes, not intractable, without status epilepticus now HCC 201
- G40.311 Generalized idiopathic epilepsy and epileptic syndromes, intractable, with status epilepticus now HCC 201
- G40.319 Generalized idiopathic epilepsy and epileptic syndromes, intractable, without status epilepticus now HCC 201
- G40.401 Other generalized epilepsy and epileptic syndromes, not intractable, with status epilepticus now HCC 201
- G40.409 Other generalized epilepsy and epileptic syndromes, not intractable, without status epilepticus now HCC 201
- G40.411 Other generalized epilepsy and epileptic syndromes, intractable, with status epilepticus now HCC 201
- G40.419 Other generalized epilepsy and epileptic syndromes, intractable, without status epilepticus now HCC 201
- G40.42 Cyclin-Dependent Kinase-Like 5 Deficiency Disorder now HCC 201
- G40.501 Epileptic seizures related to external causes, not intractable, with status epilepticus now HCC 201
- G40.509 Epileptic seizures related to external causes, not intractable, without status epilepticus now HCC 201
- G40.801 Other epilepsy, not intractable, with status epilepticus now HCC 201
- G40.802 Other epilepsy, not intractable, without status epilepticus now HCC 201
- G40.803 Other epilepsy, intractable, with status epilepticus now HCC 201
- G40.804 Other epilepsy, intractable, without status epilepticus now HCC 201
- G40.811 Lennox-Gastaut syndrome, not intractable, with status epilepticus now HCC 201
- G40.812 Lennox-Gastaut syndrome, not intractable, without status epilepticus now HCC 201
- G40.813 Lennox-Gastaut syndrome, intractable, with status epilepticus now HCC 201
- G40.814 Lennox-Gastaut syndrome, intractable, without status epilepticus now HCC 201
- G40.821 Epileptic spasms, not intractable, with status epilepticus now HCC 201
- G40.822 Epileptic spasms, not intractable, without status epilepticus now HCC 201
- G40.823 Epileptic spasms, intractable, with status epilepticus now HCC 201
- G40.824 Epileptic spasms, intractable, without status epilepticus now HCC 201
- G40.833 Dravet syndrome, intractable, with status epilepticus now HCC 201
- G40.834 Dravet syndrome, intractable, without status epilepticus now HCC 201
- G40.841 KCNQ2-related epilepsy, not intractable, with status epilepticus now HCC 201
- G40.842 KCNQ2-related epilepsy, not intractable, without status epilepticus now HCC 201
- G40.843 KCNQ2-related epilepsy, intractable, with status epilepticus now HCC 201
- G40.844 KCNQ2-related epilepsy, intractable, without status epilepticus now HCC 201
- G40.89 Other seizures now HCC 201
- G40.901 Epilepsy, unspecified, not intractable, with status epilepticus now HCC 201
- G40.909 Epilepsy, unspecified, not intractable, without status epilepticus now HCC 201
- G40.911 Epilepsy, unspecified, intractable, with status epilepticus now HCC 201
- G40.919 Epilepsy, unspecified, intractable, without status epilepticus now HCC 201
- G40.A01 Absence epileptic syndrome, not intractable, with status epilepticus now HCC 201
- G40.A09 Absence epileptic syndrome, not intractable, without status epilepticus now HCC 201
- G40.A11 Absence epileptic syndrome, intractable, with status epilepticus now HCC 201
- G40.A19 Absence epileptic syndrome, intractable, without status epilepticus now HCC 201
- G40.B01 Juvenile myoclonic epilepsy, not intractable, with status epilepticus now HCC 201
- G40.B09 Juvenile myoclonic epilepsy, not intractable, without status epilepticus now HCC 201
- G40.B11 Juvenile myoclonic epilepsy, intractable, with status epilepticus now HCC 201
- G40.B19 Juvenile myoclonic epilepsy, intractable, without status epilepticus now HCC 201
- G40.C01 Lafora progressive myoclonus epilepsy, not intractable, with status epilepticus now HCC 201
- G40.C09 Lafora progressive myoclonus epilepsy, not intractable, without status epilepticus now HCC 201
- G40.C11 Lafora progressive myoclonus epilepsy, intractable, with status epilepticus now HCC 201
- G40.C19 Lafora progressive myoclonus epilepsy, intractable, without status epilepticus now HCC 201
- G93.45 Developmental and epileptic encephalopathy now HCC 201
- R56.00 Simple febrile convulsions now HCC 201
- R56.01 Complex febrile convulsions now HCC 201
- R56.1 Post traumatic seizures now HCC 201
- R56.9 Unspecified convulsions now HCC 201
Questions About This Archived Category
Is V24 HCC 79 still paid?
No. The CMS-HCC V24 model last determined Medicare Advantage payment in 2025; from payment year 2026 the V28 model pays 100% of the risk score. This page exists for lookback analysis and RADV audit periods that predate the transition.
Where did these codes go in V28?
Each row above names the code's live V28 category. The category-level picture, with destination counts for every V24 category, is on V24 to V28: What Changed.
Related References
Source: Centers for Medicare & Medicaid Services, Payment Year 2026 risk adjustment mapping and model software releases (CMS-HCC V28; CMS-HCC V24 from the last published V24 mappings, payment year 2025), applied to the FY 2026 ICD-10-CM code set. ICD List is not affiliated with CMS.
