Neoplasms C00-D49

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).

Codes

C00-C14 Malignant neoplasms of lip, oral cavity and pharynx

C15-C26 Malignant neoplasms of digestive organs

C30-C39 Malignant neoplasms of respiratory and intrathoracic organs

C40-C41 Malignant neoplasms of bone and articular cartilage

C43-C44 Melanoma and other malignant neoplasms of skin

C45-C49 Malignant neoplasms of mesothelial and soft tissue

C50-C50 Malignant neoplasms of breast

C51-C58 Malignant neoplasms of female genital organs

C60-C63 Malignant neoplasms of male genital organs

C64-C68 Malignant neoplasms of urinary tract

C69-C72 Malignant neoplasms of eye, brain and other parts of central nervous system

C73-C75 Malignant neoplasms of thyroid and other endocrine glands

C76-C80 Malignant neoplasms of ill-defined, other secondary and unspecified sites

C7A-C7A Malignant neuroendocrine tumors

C7B-C7B Secondary neuroendocrine tumors

C81-C96 Malignant neoplasms of lymphoid, hematopoietic and related tissue

D00-D09 In situ neoplasms

D10-D36 Benign neoplasms, except benign neuroendocrine tumors

D37-D48 Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes

D3A-D3A Benign neuroendocrine tumors

D49-D49 Neoplasms of unspecified behavior