About Section C43-C44

Section C43-C44 covers Melanoma and other malignant neoplasms of skin within Chapter 2 of the ICD-10-CM Tabular List. This section includes diagnosis codes ranging from C43 to C44. Each code below includes its description, billable status, and links to detailed coding guidelines.
Diagnosis Codes 213 entries
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›