Secondary mast cell activation

• autoimmune disease (systemic) NOS (M35.9)
• certain conditions originating in the perinatal period (P00-P96)
• complications of pregnancy, childbirth and the puerperium (O00-O9A)
• congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
• endocrine, nutritional and metabolic diseases (E00-E88)
• human immunodeficiency virus [HIV] disease (B20)
• injury, poisoning and certain other consequences of external causes (S00-T88)
• neoplasms (C00-D49)
• symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

• defects in the complement system
• immunodeficiency disorders, except human immunodeficiency virus [HIV] disease
• sarcoidosis

• autoimmune disease (systemic) NOS (M35.9)
• functional disorders of polymorphonuclear neutrophils (D71-)
• human immunodeficiency virus [HIV] disease (B20)

• hyperglobulinemia NOS (R77.1)
• monoclonal gammopathy (of undetermined significance) (D47.2)

transplant failure and rejection (T86.-)

• 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)