C43-C44
Melanoma and other malignant neoplasms of skin
Codes in this block
213 codes
Billableusable codeNon-billableheader / grouping codeRisk-adjusting
- C43Malignant melanoma of skinNon-billable
- C43.0Malignant melanoma of lipBillable
- C43.1Malignant melanoma of eyelid, including canthusNon-billable
- C43.10Malignant melanoma of unspecified eyelid, including canthusBillable
- C43.11Malignant melanoma of right eyelid, including canthusNon-billable
- C43.111Malignant melanoma of right upper eyelid, including canthusBillable
- C43.112Malignant melanoma of right lower eyelid, including canthusBillable
- C43.12Malignant melanoma of left eyelid, including canthusNon-billable
- C43.121Malignant melanoma of left upper eyelid, including canthusBillable
- C43.122Malignant melanoma of left lower eyelid, including canthusBillable
- C43.2Malignant melanoma of ear and external auricular canalNon-billable
- C43.20Malignant melanoma of unspecified ear and external auricular canalBillable
- C43.21Malignant melanoma of right ear and external auricular canalBillable
- C43.22Malignant melanoma of left ear and external auricular canalBillable
- C43.3Malignant melanoma of other and unspecified parts of faceNon-billable
- C43.30Malignant melanoma of unspecified part of faceBillable
- C43.31Malignant melanoma of noseBillable
- C43.39Malignant melanoma of other parts of faceBillable
- C43.4Malignant melanoma of scalp and neckBillable
- C43.5Malignant melanoma of trunkNon-billable
- C43.51Malignant melanoma of anal skinBillable
- C43.52Malignant melanoma of skin of breastBillable
- C43.59Malignant melanoma of other part of trunkBillable
- C43.6Malignant melanoma of upper limb, including shoulderNon-billable
- C43.60Malignant melanoma of unspecified upper limb, including shoulderBillable
- C43.61Malignant melanoma of right upper limb, including shoulderBillable
- C43.62Malignant melanoma of left upper limb, including shoulderBillable
- C43.7Malignant melanoma of lower limb, including hipNon-billable
- C43.70Malignant melanoma of unspecified lower limb, including hipBillable
- C43.71Malignant melanoma of right lower limb, including hipBillable
- C43.72Malignant melanoma of left lower limb, including hipBillable
- C43.8Malignant melanoma of overlapping sites of skinBillable
- C43.9Malignant melanoma of skin, unspecifiedBillable
- C44Other and unspecified malignant neoplasm of skinNon-billable
- C44.0Other and unspecified malignant neoplasm of skin of lipNon-billable
- C44.00Unspecified malignant neoplasm of skin of lipBillable
- C44.01Basal cell carcinoma of skin of lipBillable
- C44.02Squamous cell carcinoma of skin of lipBillable
- C44.09Other specified malignant neoplasm of skin of lipBillable
- C44.1Other and unspecified malignant neoplasm of skin of eyelid, including canthusNon-billable
- C44.10Unspecified malignant neoplasm of skin of eyelid, including canthusNon-billable
- C44.101Unspecified malignant neoplasm of skin of unspecified eyelid, including canthusBillable
- C44.102Unspecified malignant neoplasm of skin of right eyelid, including canthusNon-billable
- C44.1021Unspecified malignant neoplasm of skin of right upper eyelid, including canthusBillable
- C44.1022Unspecified malignant neoplasm of skin of right lower eyelid, including canthusBillable
- C44.109Unspecified malignant neoplasm of skin of left eyelid, including canthusNon-billable
- C44.1091Unspecified malignant neoplasm of skin of left upper eyelid, including canthusBillable
- C44.1092Unspecified malignant neoplasm of skin of left lower eyelid, including canthusBillable
- C44.11Basal cell carcinoma of skin of eyelid, including canthusNon-billable
- C44.111Basal cell carcinoma of skin of unspecified eyelid, including canthusBillable
- C44.112Basal cell carcinoma of skin of right eyelid, including canthusNon-billable
- C44.1121Basal cell carcinoma of skin of right upper eyelid, including canthusBillable
- C44.1122Basal cell carcinoma of skin of right lower eyelid, including canthusBillable
- C44.119Basal cell carcinoma of skin of left eyelid, including canthusNon-billable
- C44.1191Basal cell carcinoma of skin of left upper eyelid, including canthusBillable
- C44.1192Basal cell carcinoma of skin of left lower eyelid, including canthusBillable
- C44.12Squamous cell carcinoma of skin of eyelid, including canthusNon-billable
- C44.121Squamous cell carcinoma of skin of unspecified eyelid, including canthusBillable
- C44.122Squamous cell carcinoma of skin of right eyelid, including canthusNon-billable
- C44.1221Squamous cell carcinoma of skin of right upper eyelid, including canthusBillable
- C44.1222Squamous cell carcinoma of skin of right lower eyelid, including canthusBillable
- C44.129Squamous cell carcinoma of skin of left eyelid, including canthusNon-billable
- C44.1291Squamous cell carcinoma of skin of left upper eyelid, including canthusBillable
- C44.1292Squamous cell carcinoma of skin of left lower eyelid, including canthusBillable
- C44.13Sebaceous cell carcinoma of skin of eyelid, including canthusNon-billable
- C44.131Sebaceous cell carcinoma of skin of unspecified eyelid, including canthusBillable
- C44.132Sebaceous cell carcinoma of skin of right eyelid, including canthusNon-billable
- C44.1321Sebaceous cell carcinoma of skin of right upper eyelid, including canthusBillable
- C44.1322Sebaceous cell carcinoma of skin of right lower eyelid, including canthusBillable
- C44.139Sebaceous cell carcinoma of skin of left eyelid, including canthusNon-billable
- C44.1391Sebaceous cell carcinoma of skin of left upper eyelid, including canthusBillable
- C44.1392Sebaceous cell carcinoma of skin of left lower eyelid, including canthusBillable
- C44.19Other specified malignant neoplasm of skin of eyelid, including canthusNon-billable
- C44.191Other specified malignant neoplasm of skin of unspecified eyelid, including canthusBillable
- C44.192Other specified malignant neoplasm of skin of right eyelid, including canthusNon-billable
- C44.1921Other specified malignant neoplasm of skin of right upper eyelid, including canthusBillable
- C44.1922Other specified malignant neoplasm of skin of right lower eyelid, including canthusBillable
- C44.199Other specified malignant neoplasm of skin of left eyelid, including canthusNon-billable
- C44.1991Other specified malignant neoplasm of skin of left upper eyelid, including canthusBillable
- C44.1992Other specified malignant neoplasm of skin of left lower eyelid, including canthusBillable
- C44.2Other and unspecified malignant neoplasm of skin of ear and external auricular canalNon-billable
- C44.20Unspecified malignant neoplasm of skin of ear and external auricular canalNon-billable
- C44.201Unspecified malignant neoplasm of skin of unspecified ear and external auricular canalBillable
- C44.202Unspecified malignant neoplasm of skin of right ear and external auricular canalBillable
- C44.209Unspecified malignant neoplasm of skin of left ear and external auricular canalBillable
- C44.21Basal cell carcinoma of skin of ear and external auricular canalNon-billable
- C44.211Basal cell carcinoma of skin of unspecified ear and external auricular canalBillable
- C44.212Basal cell carcinoma of skin of right ear and external auricular canalBillable
- C44.219Basal cell carcinoma of skin of left ear and external auricular canalBillable
- C44.22Squamous cell carcinoma of skin of ear and external auricular canalNon-billable
- C44.221Squamous cell carcinoma of skin of unspecified ear and external auricular canalBillable
- C44.222Squamous cell carcinoma of skin of right ear and external auricular canalBillable
- C44.229Squamous cell carcinoma of skin of left ear and external auricular canalBillable
- C44.29Other specified malignant neoplasm of skin of ear and external auricular canalNon-billable
- C44.291Other specified malignant neoplasm of skin of unspecified ear and external auricular canalBillable
- C44.292Other specified malignant neoplasm of skin of right ear and external auricular canalBillable
- C44.299Other specified malignant neoplasm of skin of left ear and external auricular canalBillable
- C44.3Other and unspecified malignant neoplasm of skin of other and unspecified parts of faceNon-billable
- C44.30Unspecified malignant neoplasm of skin of other and unspecified parts of faceNon-billable
- C44.300Unspecified malignant neoplasm of skin of unspecified part of faceBillable
- C44.301Unspecified malignant neoplasm of skin of noseBillable
- C44.309Unspecified malignant neoplasm of skin of other parts of faceBillable
- C44.31Basal cell carcinoma of skin of other and unspecified parts of faceNon-billable
- C44.310Basal cell carcinoma of skin of unspecified parts of faceBillable
- C44.311Basal cell carcinoma of skin of noseBillable
- C44.319Basal cell carcinoma of skin of other parts of faceBillable
- C44.32Squamous cell carcinoma of skin of other and unspecified parts of faceNon-billable
- C44.320Squamous cell carcinoma of skin of unspecified parts of faceBillable
- C44.321Squamous cell carcinoma of skin of noseBillable
- C44.329Squamous cell carcinoma of skin of other parts of faceBillable
- C44.39Other specified malignant neoplasm of skin of other and unspecified parts of faceNon-billable
- C44.390Other specified malignant neoplasm of skin of unspecified parts of faceBillable
- C44.391Other specified malignant neoplasm of skin of noseBillable
- C44.399Other specified malignant neoplasm of skin of other parts of faceBillable
- C44.4Other and unspecified malignant neoplasm of skin of scalp and neckNon-billable
- C44.40Unspecified malignant neoplasm of skin of scalp and neckBillable
- C44.41Basal cell carcinoma of skin of scalp and neckBillable
- C44.42Squamous cell carcinoma of skin of scalp and neckBillable
- C44.49Other specified malignant neoplasm of skin of scalp and neckBillable
- C44.5Other and unspecified malignant neoplasm of skin of trunkNon-billable
- C44.50Unspecified malignant neoplasm of skin of trunkNon-billable
- C44.500Unspecified malignant neoplasm of anal skinBillable
- C44.501Unspecified malignant neoplasm of skin of breastBillable
- C44.509Unspecified malignant neoplasm of skin of other part of trunkBillable
- C44.51Basal cell carcinoma of skin of trunkNon-billable
- C44.510Basal cell carcinoma of anal skinBillable
- C44.511Basal cell carcinoma of skin of breastBillable
- C44.519Basal cell carcinoma of skin of other part of trunkBillable
- C44.52Squamous cell carcinoma of skin of trunkNon-billable
- C44.520Squamous cell carcinoma of anal skinBillable
- C44.521Squamous cell carcinoma of skin of breastBillable
- C44.529Squamous cell carcinoma of skin of other part of trunkBillable
- C44.59Other specified malignant neoplasm of skin of trunkNon-billable
- C44.590Other specified malignant neoplasm of anal skinBillable
- C44.591Other specified malignant neoplasm of skin of breastBillable
- C44.599Other specified malignant neoplasm of skin of other part of trunkBillable
- C44.6Other and unspecified malignant neoplasm of skin of upper limb, including shoulderNon-billable
- C44.60Unspecified malignant neoplasm of skin of upper limb, including shoulderNon-billable
- C44.601Unspecified malignant neoplasm of skin of unspecified upper limb, including shoulderBillable
- C44.602Unspecified malignant neoplasm of skin of right upper limb, including shoulderBillable
- C44.609Unspecified malignant neoplasm of skin of left upper limb, including shoulderBillable
- C44.61Basal cell carcinoma of skin of upper limb, including shoulderNon-billable
- C44.611Basal cell carcinoma of skin of unspecified upper limb, including shoulderBillable
- C44.612Basal cell carcinoma of skin of right upper limb, including shoulderBillable
- C44.619Basal cell carcinoma of skin of left upper limb, including shoulderBillable
- C44.62Squamous cell carcinoma of skin of upper limb, including shoulderNon-billable
- C44.621Squamous cell carcinoma of skin of unspecified upper limb, including shoulderBillable
- C44.622Squamous cell carcinoma of skin of right upper limb, including shoulderBillable
- C44.629Squamous cell carcinoma of skin of left upper limb, including shoulderBillable
- C44.69Other specified malignant neoplasm of skin of upper limb, including shoulderNon-billable
- C44.691Other specified malignant neoplasm of skin of unspecified upper limb, including shoulderBillable
- C44.692Other specified malignant neoplasm of skin of right upper limb, including shoulderBillable
- C44.699Other specified malignant neoplasm of skin of left upper limb, including shoulderBillable
- C44.7Other and unspecified malignant neoplasm of skin of lower limb, including hipNon-billable
- C44.70Unspecified malignant neoplasm of skin of lower limb, including hipNon-billable
- C44.701Unspecified malignant neoplasm of skin of unspecified lower limb, including hipBillable
- C44.702Unspecified malignant neoplasm of skin of right lower limb, including hipBillable
- C44.709Unspecified malignant neoplasm of skin of left lower limb, including hipBillable
- C44.71Basal cell carcinoma of skin of lower limb, including hipNon-billable
- C44.711Basal cell carcinoma of skin of unspecified lower limb, including hipBillable
- C44.712Basal cell carcinoma of skin of right lower limb, including hipBillable
- C44.719Basal cell carcinoma of skin of left lower limb, including hipBillable
- C44.72Squamous cell carcinoma of skin of lower limb, including hipNon-billable
- C44.721Squamous cell carcinoma of skin of unspecified lower limb, including hipBillable
- C44.722Squamous cell carcinoma of skin of right lower limb, including hipBillable
- C44.729Squamous cell carcinoma of skin of left lower limb, including hipBillable
- C44.79Other specified malignant neoplasm of skin of lower limb, including hipNon-billable
- C44.791Other specified malignant neoplasm of skin of unspecified lower limb, including hipBillable
- C44.792Other specified malignant neoplasm of skin of right lower limb, including hipBillable
- C44.799Other specified malignant neoplasm of skin of left lower limb, including hipBillable
- C44.8Other and unspecified malignant neoplasm of overlapping sites of skinNon-billable
- C44.80Unspecified malignant neoplasm of overlapping sites of skinBillable
- C44.81Basal cell carcinoma of overlapping sites of skinBillable
- C44.82Squamous cell carcinoma of overlapping sites of skinBillable
- C44.89Other specified malignant neoplasm of overlapping sites of skinBillable
- C44.9Other and unspecified malignant neoplasm of skin, unspecifiedNon-billable
- C44.90Unspecified malignant neoplasm of skin, unspecifiedBillable
- C44.91Basal cell carcinoma of skin, unspecifiedBillable
- C44.92Squamous cell carcinoma of skin, unspecifiedBillable
- C44.99Other specified malignant neoplasm of skin, unspecifiedBillable
- C4AMerkel cell carcinomaNon-billable
- C4A.0Merkel cell carcinoma of lipBillable
- C4A.1Merkel cell carcinoma of eyelid, including canthusNon-billable
- C4A.10Merkel cell carcinoma of unspecified eyelid, including canthusBillable
- C4A.11Merkel cell carcinoma of right eyelid, including canthusNon-billable
- C4A.111Merkel cell carcinoma of right upper eyelid, including canthusBillable
- C4A.112Merkel cell carcinoma of right lower eyelid, including canthusBillable
- C4A.12Merkel cell carcinoma of left eyelid, including canthusNon-billable
- C4A.121Merkel cell carcinoma of left upper eyelid, including canthusBillable
- C4A.122Merkel cell carcinoma of left lower eyelid, including canthusBillable
- C4A.2Merkel cell carcinoma of ear and external auricular canalNon-billable
- C4A.20Merkel cell carcinoma of unspecified ear and external auricular canalBillable
- C4A.21Merkel cell carcinoma of right ear and external auricular canalBillable
- C4A.22Merkel cell carcinoma of left ear and external auricular canalBillable
- C4A.3Merkel cell carcinoma of other and unspecified parts of faceNon-billable
- C4A.30Merkel cell carcinoma of unspecified part of faceBillable
- C4A.31Merkel cell carcinoma of noseBillable
- C4A.39Merkel cell carcinoma of other parts of faceBillable
- C4A.4Merkel cell carcinoma of scalp and neckBillable
- C4A.5Merkel cell carcinoma of trunkNon-billable
- C4A.51Merkel cell carcinoma of anal skinBillable
- C4A.52Merkel cell carcinoma of skin of breastBillable
- C4A.59Merkel cell carcinoma of other part of trunkBillable
- C4A.6Merkel cell carcinoma of upper limb, including shoulderNon-billable
- C4A.60Merkel cell carcinoma of unspecified upper limb, including shoulderBillable
- C4A.61Merkel cell carcinoma of right upper limb, including shoulderBillable
- C4A.62Merkel cell carcinoma of left upper limb, including shoulderBillable
- C4A.7Merkel cell carcinoma of lower limb, including hipNon-billable
- C4A.70Merkel cell carcinoma of unspecified lower limb, including hipBillable
- C4A.71Merkel cell carcinoma of right lower limb, including hipBillable
- C4A.72Merkel cell carcinoma of left lower limb, including hipBillable
- C4A.8Merkel cell carcinoma of overlapping sitesBillable
- C4A.9Merkel cell carcinoma, unspecifiedBillable
Official Guidelines for C43-C44
FY 2026 ›I.C.2Chapter-specific guidanceChapter 2: Neoplasms (C00-D49)
Subsections
- I.C.2.aAdmission/Encounter for treatment of primary site
- I.C.2.bAdmission/Encounter for treatment of secondary site
- I.C.2.cCoding and sequencing of complications
- I.C.2.dPrimary malignancy previously excised
- I.C.2.eAdmissions/Encounters involving antineoplastic chemotherapy, immunotherapy and radiation therapy
- I.C.2.fAdmission/encounter to determine extent of malignancy
- I.C.2.gSymptoms, signs, and abnormal findings listed in Chapter 18 associated with neoplasms
- I.C.2.hAdmission/encounter for pain control/management
- I.C.2.iMalignancy in two or more noncontiguous sites
- I.C.2.jDisseminated malignant neoplasm, unspecified
- I.C.2.kMalignant neoplasm without specification of site
- I.C.2.lSequencing of neoplasm codes
- I.C.2.mCurrent malignancy versus personal history of malignancy
- I.C.2.nLeukemia, Multiple Myeloma, and Malignant Plasma Cell
- I.C.2.oAftercare following surgery for neoplasm
- I.C.2.pFollow-up care for completed treatment of a malignancy
- I.C.2.qProphylactic organ removal for prevention of malignancy
- I.C.2.rMalignant neoplasm associated with transplanted organ
- I.C.2.sBreast Implant Associated Anaplastic Large Cell Lymphoma
- I.C.2.tSecondary malignant neoplasm of lymphoid tissue