ICD-10-CM code "D89.40": Mast cell activation, unspecified (2024)

Type 2autoimmune disease (systemic) NOS (M35.9)

Type 2certain conditions originating in the perinatal period (P00-P96)

Type 2complications of pregnancy, childbirth and the puerperium (O00-O9A)

Type 2congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)

Type 2endocrine, nutritional and metabolic diseases (E00-E88)

Type 2human immunodeficiency virus [HIV] disease (B20)

Type 2injury, poisoning and certain other consequences of external causes (S00-T88)

Type 2neoplasms (C00-D49)

Type 2symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Type 1autoimmune disease (systemic) NOS (M35.9)

Type 1functional disorders of polymorphonuclear neutrophils (D71)

Type 1human immunodeficiency virus [HIV] disease (B20)

Type 1hyperglobulinemia NOS (R77.1)

Type 1monoclonal gammopathy (of undetermined significance) (D47.2)

Type 2transplant failure and rejection (T86.-)

Type 1aggressive systemic mastocytosis (C96.21)

Type 1congenital cutaneous mastocytosis (Q82.2)

Type 1(non-congenital) cutaneous mastocytosis (D47.01)

Type 1(indolent) systemic mastocytosis (D47.02)

Type 1malignant mast cell neoplasm (C96.2-)

Type 1malignant mastocytoma (C96.29)

Type 1mast cell leukemia (C94.3-)

Type 1mast cell sarcoma (C96.22)

Type 1mastocytoma NOS (D47.09)

Type 1other mast cell neoplasms of uncertain behavior (D47.09)

Type 1systemic mastocytosis associated with a clonal hematologic non-mast cell lineage disease (SM-AHNMD) (D47.02)

Includesdefects in the complement system

Includesimmunodeficiency disorders, except human immunodeficiency virus [HIV] disease

Includessarcoidosis