C44

Other and unspecified malignant neoplasm of skin

Non-billable header

C44 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes

  • malignant neoplasm of sebaceous glands
  • malignant neoplasm of sweat glands
  • Note: Functional activity
  • Note: All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
  • Note: Morphology [Histology]
  • Note: Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
  • Note: Primary malignant neoplasms overlapping site boundaries
  • Note: A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
  • Note: Malignant neoplasm of ectopic tissue
  • Note: Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).

Excludes1

Not coded here — never report together with this code.

  • Kaposi's sarcoma of skin (C46.0)
  • malignant melanoma of skin (C43.-)
  • malignant neoplasm of skin of genital organs (C51-C52, C60.-, C63.2)
  • Merkel cell carcinoma (C4A.-)

More specific codes C44

  • C44.0Other and unspecified malignant neoplasm of skin of lipHeader
  • C44.1Other and unspecified malignant neoplasm of skin of eyelid, including canthusHeader
  • C44.2Other and unspecified malignant neoplasm of skin of ear and external auricular canalHeader
  • C44.3Other and unspecified malignant neoplasm of skin of other and unspecified parts of faceHeader
  • C44.4Other and unspecified malignant neoplasm of skin of scalp and neckHeader
  • C44.5Other and unspecified malignant neoplasm of skin of trunkHeader
  • C44.6Other and unspecified malignant neoplasm of skin of upper limb, including shoulderHeader
  • C44.7Other and unspecified malignant neoplasm of skin of lower limb, including hipHeader
  • C44.8Other and unspecified malignant neoplasm of overlapping sites of skinHeader
  • C44.9Other and unspecified malignant neoplasm of skin, unspecifiedHeader

Related codes

  • C43Malignant melanoma of skinHeader
  • C4AMerkel cell carcinomaHeader

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