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ICD-10 C44 - Other and unspecified malignant neoplasm of skin
Chapter 2 Section C43-C44

C44

ICD-10 Not billable

Other and unspecified malignant neoplasm of skin

Specifically for this code:
  • malignant neoplasm of sebaceous glands
  • malignant neoplasm of sweat glands
Specifically for 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.-)
From Chapter 2:
  • Functional activity
  • 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.
  • Morphology [Histology]
  • 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.
  • Primary malignant neoplasms overlapping site boundaries
  • 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.
  • Malignant neoplasm of ectopic tissue
  • 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).
C44 is a "category code," which means it's non-billable. Billable codes require more specificity. Use the list below to navigate to codes that are more specific:
10
C44.0
Other and unspecified malignant neoplasm of skin of lip
10
C44.1
Other and unspecified malignant neoplasm of skin of eyelid, including canthus
10
C44.2
Other and unspecified malignant neoplasm of skin of ear and external auricular canal
10
C44.3
Other and unspecified malignant neoplasm of skin of other and unspecified parts of face
10
C44.4
Other and unspecified malignant neoplasm of skin of scalp and neck
10
C44.5
Other and unspecified malignant neoplasm of skin of trunk
10
C44.6
Other and unspecified malignant neoplasm of skin of upper limb, including shoulder
10
C44.7
Other and unspecified malignant neoplasm of skin of lower limb, including hip
10
C44.8
Other and unspecified malignant neoplasm of overlapping sites of skin
10
C44.9
Other and unspecified malignant neoplasm of skin, unspecified
      
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