Alphabetic Index FY2027

C76

Malignant neoplasm of other and ill-defined sites

FY2027Chapter 2: Neoplasms/C76–C80 Malignant neoplasms of ill-defined, other secondary and unspecified sites

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

C76 is a non-billable ICD-10-CM code category for malignant neoplasm of other and ill-defined sites. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are C76.0 Malignant neoplasm of head, face and neck; C76.1 Malignant neoplasm of thorax; C76.2 Malignant neoplasm of abdomen; C76.3 Malignant neoplasm of pelvis and 3 more. Its coding notes include 5 Excludes1 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • malignant neoplasm of female genitourinary tract NOS (C57.9)
  • malignant neoplasm of male genitourinary tract NOS (C63.9)
  • malignant neoplasm of lymphoid, hematopoietic and related tissue (C81-C96)
  • malignant neoplasm of skin (C44.-)
  • malignant neoplasm of unspecified site NOS (C80.1)

Notes

Also from chapter/block level (8 notes)
Inherited from Chapter 2 Neoplasms
  • 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).

More specific codes under C76 7