D89.40
Mast cell activation, unspecified
D89.4
Mast cell activation syndrome and related disorders
Parent Code: D89
Specific Codes Under D89.4
Use a more specific code below for billing and documentation.
Inclusion Terms
None inclusion terms specified for this code.
Code First
None code first specified for this code.
Use Additional Code
None use additional code specified for this code.
Cannot Code Together
These codes cannot be used together with the current code, even if both conditions are present.
- • 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)
Can Code Together
These codes can be used together with the current code if both conditions are documented.
None specified for this code.
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