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2 Neoplasm of uncertain behavior of parathyroid gland

D44.3 Neoplasm of uncertain behavior of pituitary gland

Use additional code to identify any functional activity.

D44.4 Neoplasm of uncertain behavior of craniopharyngeal duct

D44.5 Neoplasm of uncertain behavior of pineal gland

D44.6 Neoplasm of uncertain behavior of carotid body

D44.7 Neoplasm of uncertain behavior of aortic body and other paraganglia

D44.8 Neoplasm of uncertain behavior with pluriglandular involvement

Excludes1: multiple endocrine adenomatosis (E31.2-)

multiple endocrine neoplasia (E31.2-)

D44.9 Neoplasm of uncertain behavior of endocrine gland, unspecified

D45 Polycythemia vera

Excludes1: familial polycythemia (D75.0)

secondary polycythemia (D75.1)

D46 Myelodysplastic syndromes

Code first (T36-T50) to identify drug, if drug induced

Excludes2: drug-induced aplastic anemia (D61.1)

D46.0 Refractory anemia without ring sideroblasts, so stated

Refractory anemia without sideroblasts, without excess of blasts

D46.1 Refractory anemia with ring sideroblasts

RARS

D46.2 Refractory anemia with excess of blasts

D46.20 Refractory anemia with excess of blasts, unspecified

RAEB NOS

D46.21 Refractory anemia with excess of blasts 1

RAEB 1

D46.22 Refractory anemia with excess of blasts 2

RAEB 2

D46.a Refractory cytopenia with multilineage dysplasia

D46.b Refractory cytopenia with multilineage dysplasia and ringed sideroblasts

RCMD RS

D46.c Myelodysplastic syndrome with isolated del(5q) chromosomal abnormality

Myelodysplastic syndrome with 5q deletion

5q minus syndrome NOS

D46.4 Refractory anemia, unspecified

D46.z Other myelodysplastic syndromes

Excludes1: chronic myelomonocytic leukemia (C93.1-)

D46.9 Myelodysplastic syndrome, unspecified

Myelodysplasia NOS