D89.41Billable
Monoclonal mast cell activation syndrome
Chapter 2: Neoplasms
Billable Code
D89.41 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Referenced in Diagnoses
Conditions that use this ICD-10 code in their documentation
View documentation for mcas
mcas
View TemplatesMast Cell Activation Syndrome
Additional Information from Parent Codes
The following information may apply to this code from its parent codes in the ICD-10 hierarchy. This information is important for proper coding and classification.
Parent Codes Referenced:
Excludes1
13 items
Excludes1
From D89.4:
- •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)
Notes
8 items
Notes
From C00-D49:
- •Functional activity
- •All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
- •Morphology [Histology]
- •Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
- •Primary malignant neoplasms overlapping site boundaries
- •A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
- •Malignant neoplasm of ectopic tissue
- •Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).