C96.2
Header — not billableMalignant mast cell neoplasm
The ICD-10 code for malignant mast cell neoplasm is C96.2.
C96.2 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- C96.0Multifocal and multisystemic (disseminated) Langerhans-cell histiocytosis
- C96.4Sarcoma of dendritic cells (accessory cells)
- C96.5Multifocal and unisystemic Langerhans-cell histiocytosis
- C96.6Unifocal Langerhans-cell histiocytosis
- C96.9Malignant neoplasm of lymphoid, hematopoietic and related tissue, unspecified
- C96.AHistiocytic sarcoma
- C96.ZOther specified malignant neoplasms of lymphoid, hematopoietic and related tissue
- C96.2Malignant mast cell neoplasmnon-billable header