World Health Organization · 2026-01 · English
Neoplasms of unknown behaviour, except of lymphoid, haematopoietic, central nervous system or related tissues
Official WHO ICD-11 MMS tabulation. This international classification is separate from US ICD-10-CM. For complete instructions and postcoordination, consult the WHO browser.
More specific codes
2F90Neoplasms of unknown behaviour of oral cavity or digestive organs2F91Neoplasms of unknown behaviour of middle ear, respiratory or intrathoracic organs2F92Neoplasms of unknown behaviour of skin2F93Neoplasms of unknown behaviour of retroperitoneum2F94Neoplasms of unknown behaviour of peritoneum2F95Neoplasms of unknown behaviour of breast2F96Neoplasms of unknown behaviour of female genital organs2F97Neoplasms of unknown behaviour of male genital organs2F98Neoplasms of unknown behaviour of urinary organs2F99Neoplasms of unknown behaviour of eye or ocular adnexa2F9ANeoplasms of unknown behaviour of endocrine glands2F9BNeoplasms of unknown behaviour of bone or articular cartilage2F9CNeoplasms of unknown behaviour of connective or other soft tissue2F9YNeoplasms of unknown behaviour of other specified site2F9ZNeoplasms of unknown behaviour of unspecified site© World Health Organization · CC BY-ND 3.0 IGO