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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