Code
Hierarchy
Notes
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Functional activity
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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.
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Morphology [Histology]
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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.
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Primary malignant neoplasms overlapping site boundaries
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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.
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Malignant neoplasm of ectopic tissue
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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).
- C25.9 Malignant neoplasm of pancreas, unspecified
Inclusion Terms
D14.0
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Benign neoplasm of cartilage of nose
Excludes 1
D14.0
- benign neoplasm of auricular canal (external) (D22.2-, D23.2-)
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benign neoplasm of bone of ear (D16.4)
- D16.4 Benign neoplasm of bones of skull and face
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benign neoplasm of bone of nose (D16.4)
- D16.4 Benign neoplasm of bones of skull and face
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benign neoplasm of cartilage of ear (D21.0)
- D21.0 Benign neoplasm of connective and other soft tissue of head, face and neck
- benign neoplasm of ear (external)(skin) (D22.2-, D23.2-)
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benign neoplasm of nose NOS (D36.7)
- D36.7 Benign neoplasm of other specified sites
- benign neoplasm of skin of nose (D22.39, D23.39)
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benign neoplasm of olfactory bulb (D33.3)
- D33.3 Benign neoplasm of cranial nerves
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benign neoplasm of posterior margin of septum and choanae (D10.6)
- D10.6 Benign neoplasm of nasopharynx
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polyp of accessory sinus (J33.8)
- J33.8 Other polyp of sinus
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polyp of ear (middle) (H74.4)
- H74.4 Polyp of middle ear
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polyp of nasal (cavity) (J33.-)
- J33 Nasal polyp