Neoplasms of uncertain behaviour, except of lymphoid, haematopoietic, central nervous system or related tissues

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2025-01

A neoplasm except of lymphoid, haematopoietic, central nervous system or related tissues displaying morphologic, phenotypic, or genotypic characteristics that are clearly not benign but do not permit the establishment of a definitive diagnosis of malignancy. Such neoplasms may or may not eventually have a more aggressive clinical course. Representative examples include borderline ovarian epithelial neoplasms (e.g., borderline ovarian endometrioid tumour and borderline ovarian mucinous tumour), borderline exocrine pancreatic neoplasm (e.g., pancreatic borderline intraductal papillary-mucinous neoplasm), and primary borderline peritoneal epithelial neoplasm.

code elsewhere

• Pathological fracture in neoplastic disease of uncertain behaviour  (FB80.B)

sections/codes in this section (2F70-2F7Z)

• Neoplasms of uncertain behaviour of oral cavity or digestive organs  (2F70)
• Neoplasms of uncertain behaviour of middle ear, respiratory or intrathoracic organs  (2F71)
• Neoplasms of uncertain behaviour of skin  (2F72)
• Neoplasms of uncertain behaviour of retroperitoneum  (2F73)
• Neoplasms of uncertain behaviour of peritoneum  (2F74)
• Neoplasms of uncertain behaviour of breast  (2F75)
• Neoplasms of uncertain behaviour of female genital organs  (2F76)
• Neoplasms of uncertain behaviour of male genital organs  (2F77)
• Neoplasms of uncertain behaviour of urinary organs  (2F78)
• Neoplasms of uncertain behaviour of eye or ocular adnexa  (2F79)
• Neoplasms of uncertain behaviour of endocrine glands  (2F7A)
• Neoplasms of uncertain behaviour of bone or articular cartilage  (2F7B)
• Neoplasms of uncertain behaviour of connective or other soft tissue  (2F7C)
• Neoplasms of uncertain behaviour of other specified site  (2F7Y)
• Neoplasms of uncertain behaviour of unspecified site  (2F7Z)

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