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Icd10cm
D50-D89
D80-D89
D89
D89.4
D89.4
Mast cell activation syndrome and related disorders
Type 1 Excludes
aggressive systemic mastocytosis (C96.21)
congenital cutaneous mastocytosis (Q82.2)
(non-congenital) cutaneous mastocytosis (D47.01)
(indolent) systemic mastocytosis (D47.02)
malignant mast cell neoplasm (C96.2-)
malignant mastocytoma (C96.29)
mast cell leukemia (C94.3-)
mast cell sarcoma (C96.22)
mastocytoma NOS (D47.09)
other mast cell neoplasms of uncertain behavior (D47.09)
systemic mastocytosis associated with a clonal hematologic non-mast cell lineage disease (SM-AHNMD) (D47.02)
Related Medical Terms
Glossary entries related to this code
mast cell activation syndrome
Children (6)
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Code
Description
Billable
Details
D89.40
Mast cell activation, unspecified
D89.41
Monoclonal mast cell activation syndrome
D89.42
Idiopathic mast cell activation syndrome
D89.43
Secondary mast cell activation
D89.44
Hereditary alpha tryptasemia
Additional Codes (3)
D89.49
Other mast cell activation disorder
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