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ICD-10 D89.4 - Mast cell activation syndrome and related disorders
Chapter 3 Section D80-D89

D89.4

ICD-10 Not billable

Mast cell activation syndrome and related disorders

Specifically for this code:
  • aggressive systemic mastocytosis (C96.2)
  • cutaneous mastocytosis (Q82.2)
  • indolent systemic mastocytosis (D47.0)
  • malignant mastocytoma (C96.2)
  • mast cell leukemia (C94.3-)
  • mastocytoma (D47.0)
  • systemic mastocytosis associated with a clonal hematologic non-mast cell lineage disease (SM-AHNMD) (D47.0)
From Section D80-D89:
  • autoimmune disease (systemic) NOS (M35.9)
  • functional disorders of polymorphonuclear neutrophils (D71)
  • human immunodeficiency virus [HIV] disease (B20)
From Chapter 3:
  • 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)
From Section D80-D89:
  • defects in the complement system
  • immunodeficiency disorders, except human immunodeficiency virus [HIV] disease
  • sarcoidosis
D89.4 is a "category code," which means it's non-billable. Billable codes require more specificity. Use the list below to navigate to codes that are more specific:
10
D89.40
Mast cell activation, unspecified
Billable
10
D89.41
Monoclonal mast cell activation syndrome
Billable
10
D89.42
Idiopathic mast cell activation syndrome
Billable
10
D89.43
Secondary mast cell activation
Billable
10
D89.49
Other mast cell activation disorder
Billable
      
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