Instruction Source: C78.30
Secondary malignant neoplasm of unspecified respiratory organ
Instruction Source: C78.3
Secondary malignant neoplasm of other and unspecified respiratory organs
Instruction Source: C78
Secondary malignant neoplasm of respiratory and digestive organs
Excludes 1 (Mutually Exclusive)
- secondary carcinoid tumors of liver (C7B.02)
- secondary carcinoid tumors of peritoneum (C7B.04)
Excludes 2 (Not Included Here)
- lymph node metastases (C77.0)
Instruction Source: C76-C80
Malignant neoplasms of ill-defined, other secondary and unspecified sites (C76-C80)
Instruction Source: C00-D49
Neoplasms
Clinical Notes
- 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.
- 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.
- 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.
- Functional activity
- 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).
- Morphology [Histology]
- Primary malignant neoplasms overlapping site boundaries