Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

Internal Codes
  • C44.1391

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

  • C44.1392

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

  • C44.19

    Other specified malignant neoplasm of skin of eyelid, including canthus

  • C44.191

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

  • C44.192

    Other specified malignant neoplasm of skin of right eyelid, including canthus

  • C44.1921

    Other specified malignant neoplasm of skin of right upper eyelid, including canthus

  • C44.1922

    Other specified malignant neoplasm of skin of right lower eyelid, including canthus

  • C44.199

    Other specified malignant neoplasm of skin of left eyelid, including canthus

  • C44.1991

    Other specified malignant neoplasm of skin of left upper eyelid, including canthus

  • C44.1992

    Other specified malignant neoplasm of skin of left lower eyelid, including canthus

  • C44.2

    Other and unspecified malignant neoplasm of skin of ear and external auricular canal

  • C44.20

    Unspecified malignant neoplasm of skin of ear and external auricular canal

  • C44.201

    Unspecified malignant neoplasm of skin of unspecified ear and external auricular canal

  • C44.202

    Unspecified malignant neoplasm of skin of right ear and external auricular canal

  • C44.209

    Unspecified malignant neoplasm of skin of left ear and external auricular canal

  • C44.21

    Basal cell carcinoma of skin of ear and external auricular canal

  • C44.211

    Basal cell carcinoma of skin of unspecified ear and external auricular canal

  • C44.212

    Basal cell carcinoma of skin of right ear and external auricular canal

  • C44.219

    Basal cell carcinoma of skin of left ear and external auricular canal

  • C44.22

    Squamous cell carcinoma of skin of ear and external auricular canal

  • C44.221

    Squamous cell carcinoma of skin of unspecified ear and external auricular canal

  • C44.222

    Squamous cell carcinoma of skin of right ear and external auricular canal

  • C44.229

    Squamous cell carcinoma of skin of left ear and external auricular canal

  • C44.29

    Other specified malignant neoplasm of skin of ear and external auricular canal

  • C44.291

    Other specified malignant neoplasm of skin of unspecified ear and external auricular canal

  • C44.292

    Other specified malignant neoplasm of skin of right ear and external auricular canal

  • C44.299

    Other specified malignant neoplasm of skin of left ear and external auricular canal

  • C44.3

    Other and unspecified malignant neoplasm of skin of other and unspecified parts of face

  • C44.30

    Unspecified malignant neoplasm of skin of other and unspecified parts of face

  • C44.300

    Unspecified malignant neoplasm of skin of unspecified part of face

  • C44.301

    Unspecified malignant neoplasm of skin of nose

  • C44.309

    Unspecified malignant neoplasm of skin of other parts of face

  • C44.31

    Basal cell carcinoma of skin of other and unspecified parts of face

  • C44.310

    Basal cell carcinoma of skin of unspecified parts of face

  • C44.311

    Basal cell carcinoma of skin of nose

  • C44.319

    Basal cell carcinoma of skin of other parts of face

  • C44.32

    Squamous cell carcinoma of skin of other and unspecified parts of face

  • C44.320

    Squamous cell carcinoma of skin of unspecified parts of face

  • C44.321

    Squamous cell carcinoma of skin of nose

  • C44.329

    Squamous cell carcinoma of skin of other parts of face

  • C44.39

    Other specified malignant neoplasm of skin of other and unspecified parts of face

  • C44.390

    Other specified malignant neoplasm of skin of unspecified parts of face

  • C44.391

    Other specified malignant neoplasm of skin of nose

  • C44.399

    Other specified malignant neoplasm of skin of other parts of face

  • C44.4

    Other and unspecified malignant neoplasm of skin of scalp and neck

  • C44.40

    Unspecified malignant neoplasm of skin of scalp and neck

  • C44.41

    Basal cell carcinoma of skin of scalp and neck

  • C44.42

    Squamous cell carcinoma of skin of scalp and neck

  • C44.49

    Other specified malignant neoplasm of skin of scalp and neck

  • C44.5

    Other and unspecified malignant neoplasm of skin of trunk

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