D89.4 Non-Billable Code
Mast cell activation syndrome and related disorders
Chapter Classification
Chapter 3
Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
Section Detail
D80-D89
Certain disorders involving the immune mechanism (D80-D89)
Code Hierarchy
This code is a child of D89.
As a non-billable code, it requires more specific digits to be used on a medical claim.
As a non-billable code, it requires more specific digits to be used on a medical claim.
Coding Guidelines & Notes
excludes1
- 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)
More Specific Diagnosis Codes
This code is not billable as it requires a higher level of specificity. Select a more specific code below.
- D89.40 - Mast cell activation, unspecified Billable
- D89.41 - Monoclonal mast cell activation syndrome Billable
- D89.42 - Idiopathic mast cell activation syndrome Billable
- D89.43 - Secondary mast cell activation Billable
- D89.44 - Hereditary alpha tryptasemia Billable
- D89.49 - Other mast cell activation disorder Billable
Stop wrestling with ICD-10 lookup tables.
Bedrock Billing automatically validates diagnosis codes.
Start Pricing Claims