ICD-10-CM chapter 2 · C00-D49
Neoplasms
About chapter 2
23 code blocks
- C00-C96Malignant neoplasms0 categories
- C00-C75Malignant neoplasms, stated or presumed to be primary (of specified sites), and certain specified histologies, except neuroendocrine, and of lymphoid, hematopoietic and related tissue0 categories
- C00-C14Malignant neoplasms of lip, oral cavity and pharynx15 categories
- C15-C26Malignant neoplasms of digestive organs12 categories
- C30-C39Malignant neoplasms of respiratory and intrathoracic organs8 categories
- C40-C41Malignant neoplasms of bone and articular cartilage2 categories
- C43-C44Melanoma and other malignant neoplasms of skin3 categories
- C45-C49Malignant neoplasms of mesothelial and soft tissue5 categories
- C50Malignant neoplasms of breast1 categories
- C51-C58Malignant neoplasms of female genital organs8 categories
- C60-C63Malignant neoplasms of male genital organs4 categories
- C64-C68Malignant neoplasms of urinary tract5 categories
- C69-C72Malignant neoplasms of eye, brain and other parts of central nervous system4 categories
- C73-C75Malignant neoplasms of thyroid and other endocrine glands3 categories
- C7AMalignant neuroendocrine tumors1 categories
- C7BSecondary neuroendocrine tumors1 categories
- C76-C80Malignant neoplasms of ill-defined, other secondary and unspecified sites5 categories
- C81-C96Malignant neoplasms of lymphoid, hematopoietic and related tissue14 categories
- D00-D09In situ neoplasms9 categories
- D10-D36Benign neoplasms, except benign neuroendocrine tumors27 categories
- D3ABenign neuroendocrine tumors1 categories
- D37-D48Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes12 categories
- D49Neoplasms of unspecified behavior1 categories
Chapter notes
Note
- 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).