CMS-HCC Risk Adjustment · Retired V24 Model 242 Codes

V24 HCC 23 (Archived Category) ICD-10-CM

HCC 23 is a payment category of the retired CMS-HCC V24 model, which last determined Medicare Advantage payment in 2025. The 242 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; 189 of them no longer risk-adjust at all.

✗ Retired model · not used for current Medicare Advantage paymentLast paid PY 2025 · kept for lookback and RADV reference
242
ICD-10-CM Codes
53
Still Risk-Adjust in V28
189
No V28 Successor
PY 2025
Last Paid Year
CMS-HCC V24

Archived Codes of V24 HCC 23 242 codes

242 of 242 shown
  • A39.1 Waterhouse-Friderichsen syndrome no V28 successor
  • C88.0 Waldenstrom macroglobulinemia no V28 successor
  • C88.00 Waldenstrom macroglobulinemia not having achieved remission now HCC 21
  • C88.01 Waldenstrom macroglobulinemia, in remission now HCC 21
  • D84.1 Defects in the complement system now HCC 115
  • D89.1 Cryoglobulinemia no V28 successor
  • E03.5 Myxedema coma now HCC 202
  • E15 Nondiabetic hypoglycemic coma no V28 successor
  • E20.0 Idiopathic hypoparathyroidism no V28 successor
  • E20.810 Autosomal dominant hypocalcemia no V28 successor
  • E20.811 Secondary hypoparathyroidism in diseases classified elsewhere no V28 successor
  • E20.812 Autoimmune hypoparathyroidism no V28 successor
  • E20.818 Other specified hypoparathyroidism due to impaired parathyroid hormone secretion no V28 successor
  • E20.819 Hypoparathyroidism due to impaired parathyroid hormone secretion, unspecified no V28 successor
  • E20.89 Other specified hypoparathyroidism no V28 successor
  • E20.9 Hypoparathyroidism, unspecified no V28 successor
  • E21.0 Primary hyperparathyroidism no V28 successor
  • E21.1 Secondary hyperparathyroidism, not elsewhere classified no V28 successor
  • E21.2 Other hyperparathyroidism no V28 successor
  • E21.3 Hyperparathyroidism, unspecified no V28 successor
  • E21.4 Other specified disorders of parathyroid gland no V28 successor
  • E21.5 Disorder of parathyroid gland, unspecified no V28 successor
  • E22.0 Acromegaly and pituitary gigantism now HCC 51
  • E22.1 Hyperprolactinemia no V28 successor
  • E22.2 Syndrome of inappropriate secretion of antidiuretic hormone no V28 successor
  • E22.8 Other hyperfunction of pituitary gland no V28 successor
  • E22.9 Hyperfunction of pituitary gland, unspecified no V28 successor
  • E23.0 Hypopituitarism no V28 successor
  • E23.1 Drug-induced hypopituitarism no V28 successor
  • E23.2 Diabetes insipidus no V28 successor
  • E23.3 Hypothalamic dysfunction, not elsewhere classified no V28 successor
  • E23.6 Other disorders of pituitary gland no V28 successor
  • E23.7 Disorder of pituitary gland, unspecified no V28 successor
  • E24.0 Pituitary-dependent Cushing's disease now HCC 51
  • E24.1 Nelson's syndrome no V28 successor
  • E24.2 Drug-induced Cushing's syndrome no V28 successor
  • E24.3 Ectopic ACTH syndrome no V28 successor
  • E24.4 Alcohol-induced pseudo-Cushing's syndrome no V28 successor
  • E24.8 Other Cushing's syndrome no V28 successor
  • E24.9 Cushing's syndrome, unspecified no V28 successor
  • E25.0 Congenital adrenogenital disorders associated with enzyme deficiency no V28 successor
  • E25.8 Other adrenogenital disorders no V28 successor
  • E25.9 Adrenogenital disorder, unspecified no V28 successor
  • E26.01 Conn's syndrome no V28 successor
  • E26.02 Glucocorticoid-remediable aldosteronism no V28 successor
  • E26.09 Other primary hyperaldosteronism no V28 successor
  • E26.1 Secondary hyperaldosteronism no V28 successor
  • E26.81 Bartter's syndrome no V28 successor
  • E26.89 Other hyperaldosteronism no V28 successor
  • E26.9 Hyperaldosteronism, unspecified no V28 successor
  • E27.0 Other adrenocortical overactivity no V28 successor
  • E27.1 Primary adrenocortical insufficiency now HCC 51
  • E27.2 Addisonian crisis no V28 successor
  • E27.3 Drug-induced adrenocortical insufficiency no V28 successor
  • E27.40 Unspecified adrenocortical insufficiency no V28 successor
  • E27.49 Other adrenocortical insufficiency no V28 successor
  • E27.5 Adrenomedullary hyperfunction no V28 successor
  • E27.8 Other specified disorders of adrenal gland no V28 successor
  • E27.9 Disorder of adrenal gland, unspecified no V28 successor
  • E31.0 Autoimmune polyglandular failure now HCC 51
  • E31.1 Polyglandular hyperfunction now HCC 51
  • E31.20 Multiple endocrine neoplasia [MEN] syndrome, unspecified now HCC 51
  • E31.21 Multiple endocrine neoplasia [MEN] type I now HCC 51
  • E31.22 Multiple endocrine neoplasia [MEN] type IIA now HCC 51
  • E31.23 Multiple endocrine neoplasia [MEN] type IIB now HCC 51
  • E31.8 Other polyglandular dysfunction now HCC 51
  • E31.9 Polyglandular dysfunction, unspecified now HCC 51
  • E32.0 Persistent hyperplasia of thymus no V28 successor
  • E32.1 Abscess of thymus no V28 successor
  • E32.8 Other diseases of thymus no V28 successor
  • E32.9 Disease of thymus, unspecified no V28 successor
  • E34.4 Constitutional tall stature no V28 successor
  • E70.0 Classical phenylketonuria no V28 successor
  • E70.1 Other hyperphenylalaninemias no V28 successor
  • E70.20 Disorder of tyrosine metabolism, unspecified no V28 successor
  • E70.21 Tyrosinemia no V28 successor
  • E70.29 Other disorders of tyrosine metabolism no V28 successor
  • E70.30 Albinism, unspecified no V28 successor
  • E70.310 X-linked ocular albinism no V28 successor
  • E70.311 Autosomal recessive ocular albinism no V28 successor
  • E70.318 Other ocular albinism no V28 successor
  • E70.319 Ocular albinism, unspecified no V28 successor
  • E70.320 Tyrosinase negative oculocutaneous albinism no V28 successor
  • E70.321 Tyrosinase positive oculocutaneous albinism no V28 successor
  • E70.328 Other oculocutaneous albinism no V28 successor
  • E70.329 Oculocutaneous albinism, unspecified no V28 successor
  • E70.330 Chediak-Higashi syndrome no V28 successor
  • E70.331 Hermansky-Pudlak syndrome no V28 successor
  • E70.338 Other albinism with hematologic abnormality no V28 successor
  • E70.339 Albinism with hematologic abnormality, unspecified no V28 successor
  • E70.39 Other specified albinism no V28 successor
  • E70.40 Disorders of histidine metabolism, unspecified no V28 successor
  • E70.41 Histidinemia no V28 successor
  • E70.49 Other disorders of histidine metabolism no V28 successor
  • E70.5 Disorders of tryptophan metabolism no V28 successor
  • E70.81 Aromatic L-amino acid decarboxylase deficiency no V28 successor
  • E70.89 Other disorders of aromatic amino-acid metabolism no V28 successor
  • E70.9 Disorder of aromatic amino-acid metabolism, unspecified no V28 successor
  • E71.0 Maple-syrup-urine disease no V28 successor
  • E71.110 Isovaleric acidemia no V28 successor
  • E71.111 3-methylglutaconic aciduria no V28 successor
  • E71.118 Other branched-chain organic acidurias no V28 successor
  • E71.120 Methylmalonic acidemia no V28 successor
  • E71.121 Propionic acidemia no V28 successor
  • E71.128 Other disorders of propionate metabolism no V28 successor
  • E71.19 Other disorders of branched-chain amino-acid metabolism no V28 successor
  • E71.2 Disorder of branched-chain amino-acid metabolism, unspecified no V28 successor
  • E71.310 Long chain/very long chain acyl CoA dehydrogenase deficiency no V28 successor
  • E71.311 Medium chain acyl CoA dehydrogenase deficiency no V28 successor
  • E71.312 Short chain acyl CoA dehydrogenase deficiency no V28 successor
  • E71.313 Glutaric aciduria type II no V28 successor
  • E71.314 Muscle carnitine palmitoyltransferase deficiency no V28 successor
  • E71.318 Other disorders of fatty-acid oxidation no V28 successor
  • E71.32 Disorders of ketone metabolism no V28 successor
  • E71.39 Other disorders of fatty-acid metabolism no V28 successor
  • E71.40 Disorder of carnitine metabolism, unspecified no V28 successor
  • E71.41 Primary carnitine deficiency no V28 successor
  • E71.42 Carnitine deficiency due to inborn errors of metabolism no V28 successor
  • E71.43 Iatrogenic carnitine deficiency no V28 successor
  • E71.440 Ruvalcaba-Myhre-Smith syndrome no V28 successor
  • E71.448 Other secondary carnitine deficiency no V28 successor
  • E71.50 Peroxisomal disorder, unspecified no V28 successor
  • E71.510 Zellweger syndrome no V28 successor
  • E71.511 Neonatal adrenoleukodystrophy no V28 successor
  • E71.518 Other disorders of peroxisome biogenesis no V28 successor
  • E71.520 Childhood cerebral X-linked adrenoleukodystrophy no V28 successor
  • E71.521 Adolescent X-linked adrenoleukodystrophy no V28 successor
  • E71.522 Adrenomyeloneuropathy no V28 successor
  • E71.528 Other X-linked adrenoleukodystrophy no V28 successor
  • E71.529 X-linked adrenoleukodystrophy, unspecified type no V28 successor
  • E71.53 Other group 2 peroxisomal disorders no V28 successor
  • E71.540 Rhizomelic chondrodysplasia punctata no V28 successor
  • E71.541 Zellweger-like syndrome no V28 successor
  • E71.542 Other group 3 peroxisomal disorders no V28 successor
  • E71.548 Other peroxisomal disorders no V28 successor
  • E72.00 Disorders of amino-acid transport, unspecified no V28 successor
  • E72.01 Cystinuria no V28 successor
  • E72.02 Hartnup's disease no V28 successor
  • E72.03 Lowe's syndrome no V28 successor
  • E72.04 Cystinosis no V28 successor
  • E72.09 Other disorders of amino-acid transport no V28 successor
  • E72.10 Disorders of sulfur-bearing amino-acid metabolism, unspecified no V28 successor
  • E72.11 Homocystinuria no V28 successor
  • E72.12 Methylenetetrahydrofolate reductase deficiency no V28 successor
  • E72.19 Other disorders of sulfur-bearing amino-acid metabolism no V28 successor
  • E72.20 Disorder of urea cycle metabolism, unspecified no V28 successor
  • E72.21 Argininemia no V28 successor
  • E72.22 Arginosuccinic aciduria no V28 successor
  • E72.23 Citrullinemia no V28 successor
  • E72.29 Other disorders of urea cycle metabolism no V28 successor
  • E72.3 Disorders of lysine and hydroxylysine metabolism no V28 successor
  • E72.4 Disorders of ornithine metabolism no V28 successor
  • E72.50 Disorder of glycine metabolism, unspecified no V28 successor
  • E72.51 Non-ketotic hyperglycinemia no V28 successor
  • E72.52 Trimethylaminuria no V28 successor
  • E72.53 Primary hyperoxaluria now HCC 50
  • E72.59 Other disorders of glycine metabolism no V28 successor
  • E72.81 Disorders of gamma aminobutyric acid metabolism no V28 successor
  • E72.89 Other specified disorders of amino-acid metabolism no V28 successor
  • E72.9 Disorder of amino-acid metabolism, unspecified no V28 successor
  • E74.00 Glycogen storage disease, unspecified now HCC 50
  • E74.01 von Gierke disease now HCC 50
  • E74.02 Pompe disease now HCC 49
  • E74.03 Cori disease now HCC 50
  • E74.04 McArdle disease now HCC 50
  • E74.05 Lysosome-associated membrane protein 2 [LAMP2] deficiency now HCC 50
  • E74.09 Other glycogen storage disease now HCC 50
  • E74.20 Disorders of galactose metabolism, unspecified no V28 successor
  • E74.21 Galactosemia no V28 successor
  • E74.29 Other disorders of galactose metabolism no V28 successor
  • E74.4 Disorders of pyruvate metabolism and gluconeogenesis no V28 successor
  • E74.810 Glucose transporter protein type 1 deficiency no V28 successor
  • E74.818 Other disorders of glucose transport no V28 successor
  • E74.819 Disorders of glucose transport, unspecified no V28 successor
  • E74.820 SLC13A5 Citrate Transporter Disorder no V28 successor
  • E74.829 Other disorders of citrate metabolism no V28 successor
  • E74.89 Other specified disorders of carbohydrate metabolism no V28 successor
  • E74.9 Disorder of carbohydrate metabolism, unspecified no V28 successor
  • E75.21 Fabry (-Anderson) disease now HCC 49
  • E75.22 Gaucher disease now HCC 49
  • E75.240 Niemann-Pick disease type A no V28 successor
  • E75.241 Niemann-Pick disease type B no V28 successor
  • E75.242 Niemann-Pick disease type C no V28 successor
  • E75.243 Niemann-Pick disease type D no V28 successor
  • E75.244 Niemann-Pick disease type A/B no V28 successor
  • E75.248 Other Niemann-Pick disease no V28 successor
  • E75.249 Niemann-Pick disease, unspecified no V28 successor
  • E75.3 Sphingolipidosis, unspecified no V28 successor
  • E76.01 Hurler's syndrome now HCC 49
  • E76.02 Hurler-Scheie syndrome now HCC 49
  • E76.03 Scheie's syndrome now HCC 49
  • E76.1 Mucopolysaccharidosis, type II now HCC 49
  • E76.210 Morquio A mucopolysaccharidoses now HCC 49
  • E76.211 Morquio B mucopolysaccharidoses now HCC 49
  • E76.219 Morquio mucopolysaccharidoses, unspecified now HCC 49
  • E76.22 Sanfilippo mucopolysaccharidoses now HCC 49
  • E76.29 Other mucopolysaccharidoses now HCC 49
  • E76.3 Mucopolysaccharidosis, unspecified now HCC 49
  • E76.8 Other disorders of glucosaminoglycan metabolism no V28 successor
  • E76.9 Glucosaminoglycan metabolism disorder, unspecified no V28 successor
  • E77.0 Defects in post-translational modification of lysosomal enzymes no V28 successor
  • E77.1 Defects in glycoprotein degradation no V28 successor
  • E77.8 Other disorders of glycoprotein metabolism no V28 successor
  • E77.9 Disorder of glycoprotein metabolism, unspecified no V28 successor
  • E79.1 Lesch-Nyhan syndrome now HCC 50
  • E79.2 Myoadenylate deaminase deficiency no V28 successor
  • E79.81 Aicardi-Goutieres syndrome no V28 successor
  • E79.82 Hereditary xanthinuria no V28 successor
  • E79.89 Other specified disorders of purine and pyrimidine metabolism no V28 successor
  • E79.9 Disorder of purine and pyrimidine metabolism, unspecified no V28 successor
  • E80.0 Hereditary erythropoietic porphyria now HCC 50
  • E80.1 Porphyria cutanea tarda now HCC 50
  • E80.20 Unspecified porphyria now HCC 50
  • E80.21 Acute intermittent (hepatic) porphyria now HCC 50
  • E80.29 Other porphyria now HCC 50
  • E80.3 Defects of catalase and peroxidase now HCC 50
  • E83.110 Hereditary hemochromatosis no V28 successor
  • E85.0 Non-neuropathic heredofamilial amyloidosis now HCC 50
  • E85.1 Neuropathic heredofamilial amyloidosis now HCC 50
  • E85.2 Heredofamilial amyloidosis, unspecified now HCC 50
  • E85.3 Secondary systemic amyloidosis now HCC 50
  • E85.4 Organ-limited amyloidosis now HCC 50
  • E85.81 Light chain (AL) amyloidosis now HCC 50
  • E85.82 Wild-type transthyretin-related (ATTR) amyloidosis now HCC 50
  • E85.89 Other amyloidosis now HCC 50
  • E85.9 Amyloidosis, unspecified now HCC 50
  • E88.01 Alpha-1-antitrypsin deficiency now HCC 50
  • E88.40 Mitochondrial metabolism disorder, unspecified no V28 successor
  • E88.41 MELAS syndrome no V28 successor
  • E88.42 MERRF syndrome no V28 successor
  • E88.43 Disorders of mitochondrial tRNA synthetases no V28 successor
  • E88.49 Other mitochondrial metabolism disorders no V28 successor
  • E88.89 Other specified metabolic disorders now HCC 50
  • E89.2 Postprocedural hypoparathyroidism no V28 successor
  • E89.3 Postprocedural hypopituitarism no V28 successor
  • E89.6 Postprocedural adrenocortical (-medullary) hypofunction no V28 successor
  • H49.811 Kearns-Sayre syndrome, right eye no V28 successor
  • H49.812 Kearns-Sayre syndrome, left eye no V28 successor
  • H49.813 Kearns-Sayre syndrome, bilateral no V28 successor
  • H49.819 Kearns-Sayre syndrome, unspecified eye no V28 successor
  • N25.1 Nephrogenic diabetes insipidus no V28 successor
  • N25.81 Secondary hyperparathyroidism of renal origin no V28 successor

Questions About This Archived Category

Is V24 HCC 23 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, or marks it as having no V28 successor. The category-level picture, with destination counts for every V24 category, is on V24 to V28: What Changed.

Related References

CMS-HCC V24 ArchiveAll Live V28 CategoriesV24 to V28: What ChangedICD-10-CM Code Lookup

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.