Neoplasms (C00-D49)
Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48)

notes
Categories D37-D44, and D48 classify by site neoplasms of uncertain behavior, i.e., histologic confirmation whether the neoplasm is malignant or benign cannot be made.

excludes1
neoplasms of unspecified behavior (D49.-)
D37: Neoplasm of uncertain behavior of oral cavity and digestive organs
D38: Neoplasm of uncertain behavior of middle ear and respiratory and intrathoracic organs
D39: Neoplasm of uncertain behavior of female genital organs
D40: Neoplasm of uncertain behavior of male genital organs
D41: Neoplasm of uncertain behavior of urinary organs
D42: Neoplasm of uncertain behavior of meninges
D43: Neoplasm of uncertain behavior of brain and central nervous system
D44: Neoplasm of uncertain behavior of endocrine glands
D45: Polycythemia vera
D46: Myelodysplastic syndromes
D47: Other neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue
D48: Neoplasm of uncertain behavior of other and unspecified sites

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