![]() For example, code D12.3, Benign neoplasm of the transverse colon, is assigned for a diagnosis of adenomatous polyp of the hepatic flexure, but the excision of the polyp would be assigned to code 0DBK8ZZ. 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). ICD-10-CM classifies the hepatic flexure to the transverse colon, while the ICD-10-PCS body part key classifies it to the ascending colon.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. 8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code.Primary malignant neoplasms overlapping site boundaries.In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes. The polyps are defined by their saw-toothed appearance under the. Serrated polyps are a type of growth that stick out from the surface of the colon or rectum. SPS is a rare condition that is characterized by serrated polyps in the colon and/or rectum. The Table of Neoplasms should be used to identify the correct topography code. Serrated polyposis syndrome (SPS) was formerly called hyperplastic polyposis syndrome. Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc.An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm. All neoplasms are classified in this chapter, whether they are functionally active or not.
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