Code
Hierarchy
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C00-D49 Neoplasms (C00-D49)
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D10-D36 Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
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D35 Benign neoplasm of other and unspecified endocrine glands
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D35.0 Benign neoplasm of adrenal gland
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D35.1 Benign neoplasm of parathyroid gland
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D35.2 Benign neoplasm of pituitary gland
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D35.3 Benign neoplasm of craniopharyngeal duct
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D35.4 Benign neoplasm of pineal gland
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D35.5 Benign neoplasm of carotid body
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D35.6 Benign neoplasm of aortic body and other paraganglia
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D35.7 Benign neoplasm of other specified endocrine glands
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D35.9 Benign neoplasm of endocrine gland, unspecified
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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
Use Additional
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code to identify any functional activity