CMS-HCC Risk Adjustment · Retired V24 Model 271 Codes

V24 HCC 12 (Archived Category) ICD-10-CM

HCC 12 is a payment category of the retired CMS-HCC V24 model, which last determined Medicare Advantage payment in 2025. The 271 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; 1 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
271
ICD-10-CM Codes
270
Still Risk-Adjust in V28
1
No V28 Successor
PY 2025
Last Paid Year
CMS-HCC V24

Archived Codes of V24 HCC 12 271 codes

271 of 271 shown
  • C43.0 Malignant melanoma of lip now HCC 23
  • C43.10 Malignant melanoma of unspecified eyelid, including canthus now HCC 23
  • C43.111 Malignant melanoma of right upper eyelid, including canthus now HCC 23
  • C43.112 Malignant melanoma of right lower eyelid, including canthus now HCC 23
  • C43.121 Malignant melanoma of left upper eyelid, including canthus now HCC 23
  • C43.122 Malignant melanoma of left lower eyelid, including canthus now HCC 23
  • C43.20 Malignant melanoma of unspecified ear and external auricular canal now HCC 23
  • C43.21 Malignant melanoma of right ear and external auricular canal now HCC 23
  • C43.22 Malignant melanoma of left ear and external auricular canal now HCC 23
  • C43.30 Malignant melanoma of unspecified part of face now HCC 23
  • C43.31 Malignant melanoma of nose now HCC 23
  • C43.39 Malignant melanoma of other parts of face now HCC 23
  • C43.4 Malignant melanoma of scalp and neck now HCC 23
  • C43.51 Malignant melanoma of anal skin now HCC 23
  • C43.52 Malignant melanoma of skin of breast now HCC 23
  • C43.59 Malignant melanoma of other part of trunk now HCC 23
  • C43.60 Malignant melanoma of unspecified upper limb, including shoulder now HCC 23
  • C43.61 Malignant melanoma of right upper limb, including shoulder now HCC 23
  • C43.62 Malignant melanoma of left upper limb, including shoulder now HCC 23
  • C43.70 Malignant melanoma of unspecified lower limb, including hip now HCC 23
  • C43.71 Malignant melanoma of right lower limb, including hip now HCC 23
  • C43.72 Malignant melanoma of left lower limb, including hip now HCC 23
  • C43.8 Malignant melanoma of overlapping sites of skin now HCC 23
  • C43.9 Malignant melanoma of skin, unspecified now HCC 23
  • C4A.0 Merkel cell carcinoma of lip now HCC 21
  • C4A.10 Merkel cell carcinoma of unspecified eyelid, including canthus now HCC 21
  • C4A.111 Merkel cell carcinoma of right upper eyelid, including canthus now HCC 21
  • C4A.112 Merkel cell carcinoma of right lower eyelid, including canthus now HCC 21
  • C4A.121 Merkel cell carcinoma of left upper eyelid, including canthus now HCC 21
  • C4A.122 Merkel cell carcinoma of left lower eyelid, including canthus now HCC 21
  • C4A.20 Merkel cell carcinoma of unspecified ear and external auricular canal now HCC 21
  • C4A.21 Merkel cell carcinoma of right ear and external auricular canal now HCC 21
  • C4A.22 Merkel cell carcinoma of left ear and external auricular canal now HCC 21
  • C4A.30 Merkel cell carcinoma of unspecified part of face now HCC 21
  • C4A.31 Merkel cell carcinoma of nose now HCC 21
  • C4A.39 Merkel cell carcinoma of other parts of face now HCC 21
  • C4A.4 Merkel cell carcinoma of scalp and neck now HCC 21
  • C4A.51 Merkel cell carcinoma of anal skin now HCC 21
  • C4A.52 Merkel cell carcinoma of skin of breast now HCC 21
  • C4A.59 Merkel cell carcinoma of other part of trunk now HCC 21
  • C4A.60 Merkel cell carcinoma of unspecified upper limb, including shoulder now HCC 21
  • C4A.61 Merkel cell carcinoma of right upper limb, including shoulder now HCC 21
  • C4A.62 Merkel cell carcinoma of left upper limb, including shoulder now HCC 21
  • C4A.70 Merkel cell carcinoma of unspecified lower limb, including hip now HCC 21
  • C4A.71 Merkel cell carcinoma of right lower limb, including hip now HCC 21
  • C4A.72 Merkel cell carcinoma of left lower limb, including hip now HCC 21
  • C4A.8 Merkel cell carcinoma of overlapping sites now HCC 21
  • C4A.9 Merkel cell carcinoma, unspecified now HCC 21
  • C50.011 Malignant neoplasm of nipple and areola, right female breast now HCC 23
  • C50.012 Malignant neoplasm of nipple and areola, left female breast now HCC 23
  • C50.019 Malignant neoplasm of nipple and areola, unspecified female breast now HCC 23
  • C50.021 Malignant neoplasm of nipple and areola, right male breast now HCC 23
  • C50.022 Malignant neoplasm of nipple and areola, left male breast now HCC 23
  • C50.029 Malignant neoplasm of nipple and areola, unspecified male breast now HCC 23
  • C50.111 Malignant neoplasm of central portion of right female breast now HCC 23
  • C50.112 Malignant neoplasm of central portion of left female breast now HCC 23
  • C50.119 Malignant neoplasm of central portion of unspecified female breast now HCC 23
  • C50.121 Malignant neoplasm of central portion of right male breast now HCC 23
  • C50.122 Malignant neoplasm of central portion of left male breast now HCC 23
  • C50.129 Malignant neoplasm of central portion of unspecified male breast now HCC 23
  • C50.211 Malignant neoplasm of upper-inner quadrant of right female breast now HCC 23
  • C50.212 Malignant neoplasm of upper-inner quadrant of left female breast now HCC 23
  • C50.219 Malignant neoplasm of upper-inner quadrant of unspecified female breast now HCC 23
  • C50.221 Malignant neoplasm of upper-inner quadrant of right male breast now HCC 23
  • C50.222 Malignant neoplasm of upper-inner quadrant of left male breast now HCC 23
  • C50.229 Malignant neoplasm of upper-inner quadrant of unspecified male breast now HCC 23
  • C50.311 Malignant neoplasm of lower-inner quadrant of right female breast now HCC 23
  • C50.312 Malignant neoplasm of lower-inner quadrant of left female breast now HCC 23
  • C50.319 Malignant neoplasm of lower-inner quadrant of unspecified female breast now HCC 23
  • C50.321 Malignant neoplasm of lower-inner quadrant of right male breast now HCC 23
  • C50.322 Malignant neoplasm of lower-inner quadrant of left male breast now HCC 23
  • C50.329 Malignant neoplasm of lower-inner quadrant of unspecified male breast now HCC 23
  • C50.411 Malignant neoplasm of upper-outer quadrant of right female breast now HCC 23
  • C50.412 Malignant neoplasm of upper-outer quadrant of left female breast now HCC 23
  • C50.419 Malignant neoplasm of upper-outer quadrant of unspecified female breast now HCC 23
  • C50.421 Malignant neoplasm of upper-outer quadrant of right male breast now HCC 23
  • C50.422 Malignant neoplasm of upper-outer quadrant of left male breast now HCC 23
  • C50.429 Malignant neoplasm of upper-outer quadrant of unspecified male breast now HCC 23
  • C50.511 Malignant neoplasm of lower-outer quadrant of right female breast now HCC 23
  • C50.512 Malignant neoplasm of lower-outer quadrant of left female breast now HCC 23
  • C50.519 Malignant neoplasm of lower-outer quadrant of unspecified female breast now HCC 23
  • C50.521 Malignant neoplasm of lower-outer quadrant of right male breast now HCC 23
  • C50.522 Malignant neoplasm of lower-outer quadrant of left male breast now HCC 23
  • C50.529 Malignant neoplasm of lower-outer quadrant of unspecified male breast now HCC 23
  • C50.611 Malignant neoplasm of axillary tail of right female breast now HCC 23
  • C50.612 Malignant neoplasm of axillary tail of left female breast now HCC 23
  • C50.619 Malignant neoplasm of axillary tail of unspecified female breast now HCC 23
  • C50.621 Malignant neoplasm of axillary tail of right male breast now HCC 23
  • C50.622 Malignant neoplasm of axillary tail of left male breast now HCC 23
  • C50.629 Malignant neoplasm of axillary tail of unspecified male breast now HCC 23
  • C50.811 Malignant neoplasm of overlapping sites of right female breast now HCC 23
  • C50.812 Malignant neoplasm of overlapping sites of left female breast now HCC 23
  • C50.819 Malignant neoplasm of overlapping sites of unspecified female breast now HCC 23
  • C50.821 Malignant neoplasm of overlapping sites of right male breast now HCC 23
  • C50.822 Malignant neoplasm of overlapping sites of left male breast now HCC 23
  • C50.829 Malignant neoplasm of overlapping sites of unspecified male breast now HCC 23
  • C50.911 Malignant neoplasm of unspecified site of right female breast now HCC 23
  • C50.912 Malignant neoplasm of unspecified site of left female breast now HCC 23
  • C50.919 Malignant neoplasm of unspecified site of unspecified female breast now HCC 23
  • C50.921 Malignant neoplasm of unspecified site of right male breast now HCC 23
  • C50.922 Malignant neoplasm of unspecified site of left male breast now HCC 23
  • C50.929 Malignant neoplasm of unspecified site of unspecified male breast now HCC 23
  • C54.0 Malignant neoplasm of isthmus uteri now HCC 23
  • C54.1 Malignant neoplasm of endometrium now HCC 23
  • C54.2 Malignant neoplasm of myometrium now HCC 23
  • C54.3 Malignant neoplasm of fundus uteri now HCC 23
  • C54.8 Malignant neoplasm of overlapping sites of corpus uteri now HCC 23
  • C54.9 Malignant neoplasm of corpus uteri, unspecified now HCC 23
  • C55 Malignant neoplasm of uterus, part unspecified now HCC 23
  • C60.0 Malignant neoplasm of prepuce now HCC 23
  • C60.1 Malignant neoplasm of glans penis now HCC 23
  • C60.2 Malignant neoplasm of body of penis now HCC 23
  • C60.8 Malignant neoplasm of overlapping sites of penis now HCC 23
  • C60.9 Malignant neoplasm of penis, unspecified now HCC 23
  • C61 Malignant neoplasm of prostate now HCC 23
  • C62.00 Malignant neoplasm of unspecified undescended testis now HCC 23
  • C62.01 Malignant neoplasm of undescended right testis now HCC 23
  • C62.02 Malignant neoplasm of undescended left testis now HCC 23
  • C62.10 Malignant neoplasm of unspecified descended testis now HCC 23
  • C62.11 Malignant neoplasm of descended right testis now HCC 23
  • C62.12 Malignant neoplasm of descended left testis now HCC 23
  • C62.90 Malignant neoplasm of unspecified testis, unspecified whether descended or undescended now HCC 23
  • C62.91 Malignant neoplasm of right testis, unspecified whether descended or undescended now HCC 23
  • C62.92 Malignant neoplasm of left testis, unspecified whether descended or undescended now HCC 23
  • C63.00 Malignant neoplasm of unspecified epididymis now HCC 23
  • C63.01 Malignant neoplasm of right epididymis now HCC 23
  • C63.02 Malignant neoplasm of left epididymis now HCC 23
  • C63.10 Malignant neoplasm of unspecified spermatic cord now HCC 23
  • C63.11 Malignant neoplasm of right spermatic cord now HCC 23
  • C63.12 Malignant neoplasm of left spermatic cord now HCC 23
  • C63.2 Malignant neoplasm of scrotum now HCC 23
  • C63.7 Malignant neoplasm of other specified male genital organs now HCC 23
  • C63.8 Malignant neoplasm of overlapping sites of male genital organs now HCC 23
  • C63.9 Malignant neoplasm of male genital organ, unspecified now HCC 23
  • C69.00 Malignant neoplasm of unspecified conjunctiva now HCC 23
  • C69.01 Malignant neoplasm of right conjunctiva now HCC 23
  • C69.02 Malignant neoplasm of left conjunctiva now HCC 23
  • C69.10 Malignant neoplasm of unspecified cornea now HCC 23
  • C69.11 Malignant neoplasm of right cornea now HCC 23
  • C69.12 Malignant neoplasm of left cornea now HCC 23
  • C69.20 Malignant neoplasm of unspecified retina now HCC 23
  • C69.21 Malignant neoplasm of right retina now HCC 23
  • C69.22 Malignant neoplasm of left retina now HCC 23
  • C69.30 Malignant neoplasm of unspecified choroid now HCC 23
  • C69.31 Malignant neoplasm of right choroid now HCC 23
  • C69.32 Malignant neoplasm of left choroid now HCC 23
  • C69.40 Malignant neoplasm of unspecified ciliary body now HCC 23
  • C69.41 Malignant neoplasm of right ciliary body now HCC 23
  • C69.42 Malignant neoplasm of left ciliary body now HCC 23
  • C69.50 Malignant neoplasm of unspecified lacrimal gland and duct now HCC 23
  • C69.51 Malignant neoplasm of right lacrimal gland and duct now HCC 23
  • C69.52 Malignant neoplasm of left lacrimal gland and duct now HCC 23
  • C69.60 Malignant neoplasm of unspecified orbit now HCC 23
  • C69.61 Malignant neoplasm of right orbit now HCC 23
  • C69.62 Malignant neoplasm of left orbit now HCC 23
  • C69.80 Malignant neoplasm of overlapping sites of unspecified eye and adnexa now HCC 23
  • C69.81 Malignant neoplasm of overlapping sites of right eye and adnexa now HCC 23
  • C69.82 Malignant neoplasm of overlapping sites of left eye and adnexa now HCC 23
  • C69.90 Malignant neoplasm of unspecified site of unspecified eye now HCC 23
  • C69.91 Malignant neoplasm of unspecified site of right eye now HCC 23
  • C69.92 Malignant neoplasm of unspecified site of left eye now HCC 23
  • C73 Malignant neoplasm of thyroid gland now HCC 23
  • C75.0 Malignant neoplasm of parathyroid gland now HCC 23
  • C75.4 Malignant neoplasm of carotid body now HCC 23
  • C75.5 Malignant neoplasm of aortic body and other paraganglia now HCC 23
  • C75.8 Malignant neoplasm with pluriglandular involvement, unspecified now HCC 23
  • C75.9 Malignant neoplasm of endocrine gland, unspecified now HCC 23
  • C76.0 Malignant neoplasm of head, face and neck now HCC 23
  • C76.1 Malignant neoplasm of thorax now HCC 23
  • C76.2 Malignant neoplasm of abdomen now HCC 23
  • C76.3 Malignant neoplasm of pelvis now HCC 23
  • C76.40 Malignant neoplasm of unspecified upper limb now HCC 23
  • C76.41 Malignant neoplasm of right upper limb now HCC 23
  • C76.42 Malignant neoplasm of left upper limb now HCC 23
  • C76.50 Malignant neoplasm of unspecified lower limb now HCC 23
  • C76.51 Malignant neoplasm of right lower limb now HCC 23
  • C76.52 Malignant neoplasm of left lower limb now HCC 23
  • C76.8 Malignant neoplasm of other specified ill-defined sites now HCC 23
  • C7A.00 Malignant carcinoid tumor of unspecified site now HCC 21
  • C7A.010 Malignant carcinoid tumor of the duodenum now HCC 21
  • C7A.011 Malignant carcinoid tumor of the jejunum now HCC 21
  • C7A.012 Malignant carcinoid tumor of the ileum now HCC 21
  • C7A.019 Malignant carcinoid tumor of the small intestine, unspecified portion now HCC 21
  • C7A.020 Malignant carcinoid tumor of the appendix now HCC 21
  • C7A.021 Malignant carcinoid tumor of the cecum now HCC 21
  • C7A.022 Malignant carcinoid tumor of the ascending colon now HCC 21
  • C7A.023 Malignant carcinoid tumor of the transverse colon now HCC 21
  • C7A.024 Malignant carcinoid tumor of the descending colon now HCC 21
  • C7A.025 Malignant carcinoid tumor of the sigmoid colon now HCC 21
  • C7A.026 Malignant carcinoid tumor of the rectum now HCC 21
  • C7A.029 Malignant carcinoid tumor of the large intestine, unspecified portion now HCC 21
  • C7A.090 Malignant carcinoid tumor of the bronchus and lung now HCC 21
  • C7A.091 Malignant carcinoid tumor of the thymus now HCC 21
  • C7A.092 Malignant carcinoid tumor of the stomach now HCC 21
  • C7A.093 Malignant carcinoid tumor of the kidney now HCC 21
  • C7A.094 Malignant carcinoid tumor of the foregut, unspecified now HCC 21
  • C7A.095 Malignant carcinoid tumor of the midgut, unspecified now HCC 21
  • C7A.096 Malignant carcinoid tumor of the hindgut, unspecified now HCC 21
  • C7A.098 Malignant carcinoid tumors of other sites now HCC 21
  • C7A.1 Malignant poorly differentiated neuroendocrine tumors now HCC 21
  • C7A.8 Other malignant neuroendocrine tumors now HCC 21
  • C80.1 Malignant (primary) neoplasm, unspecified now HCC 23
  • C80.2 Malignant neoplasm associated with transplanted organ now HCC 23
  • D03.0 Melanoma in situ of lip now HCC 23
  • D03.10 Melanoma in situ of unspecified eyelid, including canthus now HCC 23
  • D03.111 Melanoma in situ of right upper eyelid, including canthus now HCC 23
  • D03.112 Melanoma in situ of right lower eyelid, including canthus now HCC 23
  • D03.121 Melanoma in situ of left upper eyelid, including canthus now HCC 23
  • D03.122 Melanoma in situ of left lower eyelid, including canthus now HCC 23
  • D03.20 Melanoma in situ of unspecified ear and external auricular canal now HCC 23
  • D03.21 Melanoma in situ of right ear and external auricular canal now HCC 23
  • D03.22 Melanoma in situ of left ear and external auricular canal now HCC 23
  • D03.30 Melanoma in situ of unspecified part of face now HCC 23
  • D03.39 Melanoma in situ of other parts of face now HCC 23
  • D03.4 Melanoma in situ of scalp and neck now HCC 23
  • D03.51 Melanoma in situ of anal skin now HCC 23
  • D03.52 Melanoma in situ of breast (skin) (soft tissue) now HCC 23
  • D03.59 Melanoma in situ of other part of trunk now HCC 23
  • D03.60 Melanoma in situ of unspecified upper limb, including shoulder now HCC 23
  • D03.61 Melanoma in situ of right upper limb, including shoulder now HCC 23
  • D03.62 Melanoma in situ of left upper limb, including shoulder now HCC 23
  • D03.70 Melanoma in situ of unspecified lower limb, including hip now HCC 23
  • D03.71 Melanoma in situ of right lower limb, including hip now HCC 23
  • D03.72 Melanoma in situ of left lower limb, including hip now HCC 23
  • D03.8 Melanoma in situ of other sites now HCC 23
  • D03.9 Melanoma in situ, unspecified now HCC 23
  • D18.02 Hemangioma of intracranial structures now HCC 23
  • D32.0 Benign neoplasm of cerebral meninges now HCC 23
  • D32.1 Benign neoplasm of spinal meninges now HCC 23
  • D32.9 Benign neoplasm of meninges, unspecified now HCC 23
  • D33.0 Benign neoplasm of brain, supratentorial now HCC 23
  • D33.1 Benign neoplasm of brain, infratentorial now HCC 23
  • D33.2 Benign neoplasm of brain, unspecified now HCC 23
  • D33.3 Benign neoplasm of cranial nerves now HCC 23
  • D33.4 Benign neoplasm of spinal cord now HCC 23
  • D33.7 Benign neoplasm of other specified parts of central nervous system now HCC 23
  • D33.9 Benign neoplasm of central nervous system, unspecified now HCC 23
  • D35.2 Benign neoplasm of pituitary gland now HCC 23
  • D35.3 Benign neoplasm of craniopharyngeal duct now HCC 23
  • D35.4 Benign neoplasm of pineal gland now HCC 23
  • D42.0 Neoplasm of uncertain behavior of cerebral meninges now HCC 23
  • D42.1 Neoplasm of uncertain behavior of spinal meninges now HCC 23
  • D42.9 Neoplasm of uncertain behavior of meninges, unspecified now HCC 23
  • D43.0 Neoplasm of uncertain behavior of brain, supratentorial now HCC 23
  • D43.1 Neoplasm of uncertain behavior of brain, infratentorial now HCC 23
  • D43.2 Neoplasm of uncertain behavior of brain, unspecified now HCC 23
  • D43.3 Neoplasm of uncertain behavior of cranial nerves now HCC 23
  • D43.4 Neoplasm of uncertain behavior of spinal cord now HCC 23
  • D43.8 Neoplasm of uncertain behavior of other specified parts of central nervous system now HCC 23
  • D43.9 Neoplasm of uncertain behavior of central nervous system, unspecified now HCC 23
  • D44.3 Neoplasm of uncertain behavior of pituitary gland now HCC 23
  • D44.4 Neoplasm of uncertain behavior of craniopharyngeal duct now HCC 23
  • D44.5 Neoplasm of uncertain behavior of pineal gland now HCC 23
  • D44.6 Neoplasm of uncertain behavior of carotid body now HCC 23
  • D44.7 Neoplasm of uncertain behavior of aortic body and other paraganglia now HCC 23
  • D49.6 Neoplasm of unspecified behavior of brain now HCC 23
  • E34.0 Carcinoid syndrome no V28 successor
  • E34.00 Carcinoid syndrome, unspecified now HCC 17
  • E34.01 Carcinoid heart syndrome now HCC 17
  • E34.09 Other carcinoid syndrome now HCC 17
  • Q85.00 Neurofibromatosis, unspecified now HCC 23
  • Q85.01 Neurofibromatosis, type 1 now HCC 23
  • Q85.02 Neurofibromatosis, type 2 now HCC 23
  • Q85.03 Schwannomatosis now HCC 23
  • Q85.09 Other neurofibromatosis now HCC 23
  • Q85.1 Tuberous sclerosis now HCC 23
  • Q85.81 PTEN hamartoma tumor syndrome now HCC 23
  • Q85.82 Other Cowden syndrome now HCC 23
  • Q85.83 Von Hippel-Lindau syndrome now HCC 23
  • Q85.89 Other phakomatoses, not elsewhere classified now HCC 23
  • Q85.9 Phakomatosis, unspecified now HCC 23

Questions About This Archived Category

Is V24 HCC 12 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.