ICD-10 codes for Skin Cancer
Skin Cancer is coded primarily under C43, C44, D03 in the ICD-10-CM (Clinical Modification) classification. Top-level categories include C43 (Malignant melanoma of skin); C44 (Other and unspecified malignant neoplasm of skin); D03 (Melanoma in situ); D04 (Carcinoma in situ of skin). The 2025 ICD-10-CM code set includes 241 codes related to skin cancer, of which 169 are billable (specific enough to appear on a medical claim).
Skin cancer codes split by histology and site. Melanoma is coded under C43, with subcodes by anatomic site. Other malignant neoplasms of skin (basal cell, squamous cell) are under C44. D03 covers melanoma in situ, and D04 is carcinoma in situ of skin. Z85.820 / Z85.828 are personal history codes for melanoma and other skin cancer.
Total Codes
241
Billable Codes
169
Categories
4
SNOMED CT Concepts
25+
Top 12 Relevant ICD-10 Codes
The codes most commonly assigned to skin cancer, ranked by primary-match status, billable status, and specificity. Tap a code to see its full ICD-10 detail page.
C43Malignant melanoma of skin
C44Other and unspecified malignant neoplasm of skin
D03Melanoma in situ
D04Carcinoma in situ of skin
C43.0Malignant melanoma of lip
C43.4Malignant melanoma of scalp and neck
C43.8Malignant melanoma of overlapping sites of skin
C43.9Malignant melanoma of skin, unspecified
D03.0Melanoma in situ of lip
D03.4Melanoma in situ of scalp and neck
D03.8Melanoma in situ of other sites
D03.9Melanoma in situ, unspecified
Primary Code Categories
These are the top-level ICD-10-CM categories for skin cancer. Click any code to see all specific subcodes within that group.
Billable / Specific Codes (169)
Specific ICD-10-CM codes that can be reported on medical claims for skin cancer.
C43.0Malignant melanoma of lip
C43.10Malignant melanoma of unspecified eyelid, including canthus
C43.111Malignant melanoma of right upper eyelid, including canthus
C43.112Malignant melanoma of right lower eyelid, including canthus
C43.121Malignant melanoma of left upper eyelid, including canthus
C43.122Malignant melanoma of left lower eyelid, including canthus
C43.20Malignant melanoma of unsp ear and external auricular canal
C43.21Malignant melanoma of right ear and external auricular canal
C43.22Malignant melanoma of left ear and external auricular canal
C43.30Malignant melanoma of unspecified part of face
C43.31Malignant melanoma of nose
C43.39Malignant melanoma of other parts of face
C43.4Malignant melanoma of scalp and neck
C43.51Malignant melanoma of anal skin
C43.52Malignant melanoma of skin of breast
C43.59Malignant melanoma of other part of trunk
C43.60Malignant melanoma of unsp upper limb, including shoulder
C43.61Malignant melanoma of right upper limb, including shoulder
C43.62Malignant melanoma of left upper limb, including shoulder
C43.70Malignant melanoma of unspecified lower limb, including hip
C43.71Malignant melanoma of right lower limb, including hip
C43.72Malignant melanoma of left lower limb, including hip
C43.8Malignant melanoma of overlapping sites of skin
C43.9Malignant melanoma of skin, unspecified
C44.00Unspecified malignant neoplasm of skin of lip
C44.01Basal cell carcinoma of skin of lip
C44.02Squamous cell carcinoma of skin of lip
C44.09Other specified malignant neoplasm of skin of lip
C44.101Unsp malignant neoplasm skin/ unsp eyelid, including canthus
C44.1021Unsp malig neoplasm skin/ right upper eyelid, inc canthus
C44.1022Unsp malig neoplasm skin/ right lower eyelid, inc canthus
C44.1091Unsp malignant neoplasm skin/ left upper eyelid, inc canthus
C44.1092Unsp malignant neoplasm skin/ left lower eyelid, inc canthus
C44.111Basal cell carcinoma skin/ unsp eyelid, including canthus
C44.1121Basal cell carcinoma skin/ right upper eyelid, inc canthus
C44.1122Basal cell carcinoma skin/ right lower eyelid, inc canthus
C44.1191Basal cell carcinoma skin/ left upper eyelid, inc canthus
C44.1192Basal cell carcinoma skin/ left lower eyelid, inc canthus
C44.121Squamous cell carcinoma skin/ unsp eyelid, including canthus
C44.1221Squamous cell carcinoma skin/ r upper eyelid, inc canthus
C44.1222Squamous cell carcinoma skin/ right low eyelid, inc canthus
C44.1291Squamous cell carcinoma skin/ left upper eyelid, inc canthus
C44.1292Squamous cell carcinoma skin/ left lower eyelid, inc canthus
C44.131Sebaceous cell carcinoma skin/ unsplid, including canthus
C44.1321Sebaceous cell carcinoma skin/ r upper eyelid, inc canthus
C44.1322Sebaceous cell carcinoma skin/ right low eyelid, inc canthus
C44.1391Sebaceous cell carcinoma skin/ left upr eyelid, inc canthus
C44.1392Sebaceous cell carcinoma skin/ left low eyelid, inc canthus
C44.191Oth malignant neoplasm skin/ unsp eyelid, including canthus
C44.1921Oth malignant neoplasm skin/ right upper eyelid, inc canthus
...and 119 more specific codes. Search all codes.
Cross-Mappings to Other Standards
ICD-10-CM codes for skin cancer link to several adjacent terminologies. These mappings are precomputed from official sources (NLM RxNav, UMLS Metathesaurus, SNOMED CT International) and served via AutoICD's reference and translate APIs.
SNOMED CT
25+ concepts mapped from this code group. Concept IDs include 188030005, 424302003, 424487008, 93640008, ....
Browse SNOMED CT directoryUMLS Metathesaurus
25+ CUIs indexed. Sample: C0151779, C0153529, C3665588, C2837985, ....
Browse UMLS directoryICD-11
ICD-11 (WHO 2022) classifies many of these conditions under different chapter and stem-code structures. Use the converter to see specific ICD-10 to ICD-11 mappings.
Open ICD-10 to ICD-11 converterFrequently Asked Questions
What is the ICD-10 code for skin cancer?
The primary ICD-10-CM codes for skin cancer are C43, C44, D03. Across all sub-categories, 241 codes are grouped under skin cancer, with 169 marked as billable (specific enough for a medical claim).
How many ICD-10 codes are there for skin cancer?
There are 241 ICD-10-CM codes related to skin cancer. Of these, 169 are billable specific codes and 72 are non-billable header categories that organize the specific codes underneath them. Header codes cannot be reported on a claim by themselves.
Is there a billable ICD-10 code for skin cancer?
Yes. 169 of the 241 ICD-10-CM codes for skin cancer are billable. Common examples include C43.0 (Malignant melanoma of lip); C43.10 (Malignant melanoma of unspecified eyelid, including canthus); C43.111 (Malignant melanoma of right upper eyelid, including canthus). Code to the highest level of specificity supported by the documentation.
Which skin cancer ICD-10 code should I use for billing?
The most commonly used billable codes for skin cancer include: C43.0 (Malignant melanoma of lip); C43.10 (Malignant melanoma of unspecified eyelid, including canthus); C43.111 (Malignant melanoma of right upper eyelid, including canthus). The correct code depends on the documented clinical presentation, including any complications, episode (acute / chronic), and laterality where applicable. Always code to the highest level of specificity supported by the clinical documentation.
Is C43 a billable ICD-10 code?
No, C43 (Malignant melanoma of skin) is a non-billable header code. You need to use a more specific child code for billing purposes.
What are the SNOMED CT concepts for skin cancer?
The ICD-10 codes for skin cancer map to at least 25 SNOMED CT concepts. Examples of SNOMED CT concept IDs in this group include 188030005, 424302003, 424487008, 93640008, 231834005. SNOMED CT is a clinical terminology used in electronic health records; AutoICD's coding API returns SNOMED CT IDs alongside each ICD-10 code via the include_snomed=true flag.
What UMLS Concept Unique Identifiers (CUIs) cover skin cancer?
The ICD-10 codes for skin cancer are linked to at least 25 UMLS CUIs in the National Library of Medicine's Metathesaurus. Sample CUIs include C0151779, C0153529, C3665588, C2837985, C2837986. UMLS CUIs unify the same concept across SNOMED CT, ICD-10, ICD-11, RxNorm, MeSH, and dozens of other source vocabularies.
What are other names for skin cancer in ICD-10?
Skin Cancer may also be referred to as: skin cancer, melanoma, squamous cell carcinoma, basal cell carcinoma, non-melanoma skin cancer. The same ICD-10-CM codes apply regardless of which term appears in the clinical documentation. Synonyms are surfaced by AutoICD's NER pass and mapped to the canonical ICD-10 family above.
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