All ICD10 Codes
Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

All CodesBillable Only
Internal Codes
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  • C49.20—

    Malignant neoplasm of connective and soft tissue of unspecified lower limb, including hip

  • C49.21—

    Malignant neoplasm of connective and soft tissue of right lower limb, including hip

  • C49.22—

    Malignant neoplasm of connective and soft tissue of left lower limb, including hip

  • C49.3—

    Malignant neoplasm of connective and soft tissue of thorax

  • C49.4—

    Malignant neoplasm of connective and soft tissue of abdomen

  • C49.5—

    Malignant neoplasm of connective and soft tissue of pelvis

  • C49.6—

    Malignant neoplasm of connective and soft tissue of trunk, unspecified

  • C49.8—

    Malignant neoplasm of overlapping sites of connective and soft tissue

  • C49.9—

    Malignant neoplasm of connective and soft tissue, unspecified

  • C49.A0—

    Gastrointestinal stromal tumor, unspecified site

  • C49.A1—

    Gastrointestinal stromal tumor of esophagus

  • C49.A2—

    Gastrointestinal stromal tumor of stomach

  • C49.A3—

    Gastrointestinal stromal tumor of small intestine

  • C49.A4—

    Gastrointestinal stromal tumor of large intestine

  • C49.A5—

    Gastrointestinal stromal tumor of rectum

  • C49.A9—

    Gastrointestinal stromal tumor of other sites

  • C4A.0—

    Merkel cell carcinoma of lip

  • C4A.10—

    Merkel cell carcinoma of unspecified eyelid, including canthus

  • C4A.111—

    Merkel cell carcinoma of right upper eyelid, including canthus

  • C4A.112—

    Merkel cell carcinoma of right lower eyelid, including canthus

  • C4A.121—

    Merkel cell carcinoma of left upper eyelid, including canthus

  • C4A.122—

    Merkel cell carcinoma of left lower eyelid, including canthus

  • C4A.20—

    Merkel cell carcinoma of unspecified ear and external auricular canal

  • C4A.21—

    Merkel cell carcinoma of right ear and external auricular canal

  • C4A.22—

    Merkel cell carcinoma of left ear and external auricular canal

  • C4A.30—

    Merkel cell carcinoma of unspecified part of face

  • C4A.31—

    Merkel cell carcinoma of nose

  • C4A.39—

    Merkel cell carcinoma of other parts of face

  • C4A.4—

    Merkel cell carcinoma of scalp and neck

  • C4A.51—

    Merkel cell carcinoma of anal skin

  • C4A.52—

    Merkel cell carcinoma of skin of breast

  • C4A.59—

    Merkel cell carcinoma of other part of trunk

  • C4A.60—

    Merkel cell carcinoma of unspecified upper limb, including shoulder

  • C4A.61—

    Merkel cell carcinoma of right upper limb, including shoulder

  • C4A.62—

    Merkel cell carcinoma of left upper limb, including shoulder

  • C4A.70—

    Merkel cell carcinoma of unspecified lower limb, including hip

  • C4A.71—

    Merkel cell carcinoma of right lower limb, including hip

  • C4A.72—

    Merkel cell carcinoma of left lower limb, including hip

  • C4A.8—

    Merkel cell carcinoma of overlapping sites

  • C4A.9—

    Merkel cell carcinoma, unspecified

  • C50.011—

    Malignant neoplasm of nipple and areola, right female breast

  • C50.012—

    Malignant neoplasm of nipple and areola, left female breast

  • C50.019—

    Malignant neoplasm of nipple and areola, unspecified female breast

  • C50.021—

    Malignant neoplasm of nipple and areola, right male breast

  • C50.022—

    Malignant neoplasm of nipple and areola, left male breast

  • C50.029—

    Malignant neoplasm of nipple and areola, unspecified male breast

  • C50.111—

    Malignant neoplasm of central portion of right female breast

  • C50.112—

    Malignant neoplasm of central portion of left female breast

  • C50.119—

    Malignant neoplasm of central portion of unspecified female breast

  • C50.121—

    Malignant neoplasm of central portion of right male breast

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