C94.30
✓ BillableMast cell leukemia not having achieved remission
Neoplasms (C00-D49)
Also Known As
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • leukemic reticuloendotheliosis (C91.4-)
- • myelodysplastic syndromes (D46.-)
- • personal history of leukemia (Z85.6)
- • plasma cell leukemia (C90.1-)
Clinical Description
ICD-10-CM code C94.30 represents mast cell leukemia not having achieved remission. This code falls under the Neoplasms (C00-D49) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.
This is a 6-character code at the 5th level of specificity. This is the most specific code available in this subcategory. Coders should note that C94.30 has 4 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code C94.30?
ICD-10-CM code C94.30 is "Mast cell leukemia not having achieved remission". It belongs to the category: Neoplasms (C00-D49).
Is C94.30 a billable ICD-10 code?
Yes, C94.30 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
What codes are excluded with C94.30?
C94.30 has 4 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in C94.3
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)