All ICD10 Codes
Chapter 2

C00–D49: Neoplasms

Neoplasms diagnostic classification updated for 2026.

All CodesBillable Only
Internal Codes
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  • C49.0|

    Malignant neoplasm of connective and soft tissue of head, face and neck

  • C49.1|

    Malignant neoplasm of connective and soft tissue of upper limb, including shoulder

  • C49.10|

    Malignant neoplasm of connective and soft tissue of unspecified upper limb, including shoulder

  • C49.11|

    Malignant neoplasm of connective and soft tissue of right upper limb, including shoulder

  • C49.12|

    Malignant neoplasm of connective and soft tissue of left upper limb, including shoulder

  • C49.2|

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

  • 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.A|

    Gastrointestinal stromal tumor

  • 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|

    Merkel cell carcinoma

  • C4A.0|

    Merkel cell carcinoma of lip

  • C4A.1|

    Merkel cell carcinoma of eyelid, including canthus

  • C4A.10|

    Merkel cell carcinoma of unspecified eyelid, including canthus

  • C4A.11|

    Merkel cell carcinoma of right 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.12|

    Merkel cell carcinoma of left 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.2|

    Merkel cell carcinoma of ear and external auricular canal

  • 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.3|

    Merkel cell carcinoma of other and unspecified parts of face

  • 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.5|

    Merkel cell carcinoma of trunk

  • 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.6|

    Merkel cell carcinoma of upper limb, including shoulder

  • 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

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