Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

Internal Codes
  • C43.51

    Malignant melanoma of anal skin

  • C43.52

    Malignant melanoma of skin of breast

  • C43.59

    Malignant melanoma of other part of trunk

  • C43.6

    Malignant melanoma of upper limb, including shoulder

  • C43.60

    Malignant melanoma of unspecified upper limb, including shoulder

  • C43.61

    Malignant melanoma of right upper limb, including shoulder

  • C43.62

    Malignant melanoma of left upper limb, including shoulder

  • C43.7

    Malignant melanoma of lower limb, including hip

  • C43.70

    Malignant melanoma of unspecified lower limb, including hip

  • C43.71

    Malignant melanoma of right lower limb, including hip

  • C43.72

    Malignant melanoma of left lower limb, including hip

  • C43.8

    Malignant melanoma of overlapping sites of skin

  • C43.9

    Malignant melanoma of skin, unspecified

  • C44

    Other and unspecified malignant neoplasm of skin

  • C44.0

    Other and unspecified malignant neoplasm of skin of lip

  • C44.00

    Unspecified malignant neoplasm of skin of lip

  • C44.01

    Basal cell carcinoma of skin of lip

  • C44.02

    Squamous cell carcinoma of skin of lip

  • C44.09

    Other specified malignant neoplasm of skin of lip

  • C44.1

    Other and unspecified malignant neoplasm of skin of eyelid, including canthus

  • C44.10

    Unspecified malignant neoplasm of skin of eyelid, including canthus

  • C44.101

    Unspecified malignant neoplasm of skin of unspecified eyelid, including canthus

  • C44.102

    Unspecified malignant neoplasm of skin of right eyelid, including canthus

  • C44.1021

    Unspecified malignant neoplasm of skin of right upper eyelid, including canthus

  • C44.1022

    Unspecified malignant neoplasm of skin of right lower eyelid, including canthus

  • C44.109

    Unspecified malignant neoplasm of skin of left eyelid, including canthus

  • C44.1091

    Unspecified malignant neoplasm of skin of left upper eyelid, including canthus

  • C44.1092

    Unspecified malignant neoplasm of skin of left lower eyelid, including canthus

  • C44.11

    Basal cell carcinoma of skin of eyelid, including canthus

  • C44.111

    Basal cell carcinoma of skin of unspecified eyelid, including canthus

  • C44.112

    Basal cell carcinoma of skin of right eyelid, including canthus

  • C44.1121

    Basal cell carcinoma of skin of right upper eyelid, including canthus

  • C44.1122

    Basal cell carcinoma of skin of right lower eyelid, including canthus

  • C44.119

    Basal cell carcinoma of skin of left eyelid, including canthus

  • C44.1191

    Basal cell carcinoma of skin of left upper eyelid, including canthus

  • C44.1192

    Basal cell carcinoma of skin of left lower eyelid, including canthus

  • C44.12

    Squamous cell carcinoma of skin of eyelid, including canthus

  • C44.121

    Squamous cell carcinoma of skin of unspecified eyelid, including canthus

  • C44.122

    Squamous cell carcinoma of skin of right eyelid, including canthus

  • C44.1221

    Squamous cell carcinoma of skin of right upper eyelid, including canthus

  • C44.1222

    Squamous cell carcinoma of skin of right lower eyelid, including canthus

  • C44.129

    Squamous cell carcinoma of skin of left eyelid, including canthus

  • C44.1291

    Squamous cell carcinoma of skin of left upper eyelid, including canthus

  • C44.1292

    Squamous cell carcinoma of skin of left lower eyelid, including canthus

  • C44.13

    Sebaceous cell carcinoma of skin of eyelid, including canthus

  • C44.131

    Sebaceous cell carcinoma of skin of unspecified eyelid, including canthus

  • C44.132

    Sebaceous cell carcinoma of skin of right eyelid, including canthus

  • C44.1321

    Sebaceous cell carcinoma of skin of right upper eyelid, including canthus

  • C44.1322

    Sebaceous cell carcinoma of skin of right lower eyelid, including canthus

  • C44.139

    Sebaceous cell carcinoma of skin of left eyelid, including canthus

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