Neoplasm, neoplastic: rectum (ampulla)

Site	Malignant, Primary	Malignant, Secondary	Ca in situ	Benign	Uncertain Behavior	Unspecified Behavior
—	C20	C78.5	D01.2	D12.8	D37.5	D49.0
and colon	C19	C78.5	D01.1	D12.7	D37.5	D49.0
overlapping lesion with anus or rectosigmoid junction	C21.8	—	—	—	—	—