All ICD10 Codes
Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

All CodesBillable Only
Internal Codes
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  • C4A.7|

    Merkel cell carcinoma of lower limb, including hip

  • 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|

    Malignant neoplasm of breast

  • C50.0|

    Malignant neoplasm of nipple and areola

  • C50.01|

    Malignant neoplasm of nipple and areola, female

  • 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

  • C50.02|

    Malignant neoplasm of nipple and areola, male

  • 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

  • C50.1|

    Malignant neoplasm of central portion of breast

  • C50.11|

    Malignant neoplasm of central portion of breast, female

  • 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

  • C50.12|

    Malignant neoplasm of central portion of breast, male

  • C50.121|

    Malignant neoplasm of central portion of right male breast

  • C50.122|

    Malignant neoplasm of central portion of left male breast

  • C50.129|

    Malignant neoplasm of central portion of unspecified male breast

  • C50.2|

    Malignant neoplasm of upper-inner quadrant of breast

  • C50.21|

    Malignant neoplasm of upper-inner quadrant of breast, female

  • C50.211|

    Malignant neoplasm of upper-inner quadrant of right female breast

  • C50.212|

    Malignant neoplasm of upper-inner quadrant of left female breast

  • C50.219|

    Malignant neoplasm of upper-inner quadrant of unspecified female breast

  • C50.22|

    Malignant neoplasm of upper-inner quadrant of breast, male

  • C50.221|

    Malignant neoplasm of upper-inner quadrant of right male breast

  • C50.222|

    Malignant neoplasm of upper-inner quadrant of left male breast

  • C50.229|

    Malignant neoplasm of upper-inner quadrant of unspecified male breast

  • C50.3|

    Malignant neoplasm of lower-inner quadrant of breast

  • C50.31|

    Malignant neoplasm of lower-inner quadrant of breast, female

  • C50.311|

    Malignant neoplasm of lower-inner quadrant of right female breast

  • C50.312|

    Malignant neoplasm of lower-inner quadrant of left female breast

  • C50.319|

    Malignant neoplasm of lower-inner quadrant of unspecified female breast

  • C50.32|

    Malignant neoplasm of lower-inner quadrant of breast, male

  • C50.321|

    Malignant neoplasm of lower-inner quadrant of right male breast

  • C50.322|

    Malignant neoplasm of lower-inner quadrant of left male breast

  • C50.329|

    Malignant neoplasm of lower-inner quadrant of unspecified male breast

  • C50.4|

    Malignant neoplasm of upper-outer quadrant of breast

  • C50.41|

    Malignant neoplasm of upper-outer quadrant of breast, female

  • C50.411|

    Malignant neoplasm of upper-outer quadrant of right female breast

  • C50.412|

    Malignant neoplasm of upper-outer quadrant of left female breast

  • C50.419|

    Malignant neoplasm of upper-outer quadrant of unspecified female breast

  • C50.42|

    Malignant neoplasm of upper-outer quadrant of breast, male

  • C50.421|

    Malignant neoplasm of upper-outer quadrant of right male breast

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