D47.01
✓ BillableCutaneous mastocytosis
Neoplasms (C00-D49)
Also Known As
❌ Excludes1
directThese codes are mutually exclusive. Never code them together.
- • congenital (diffuse) (maculopapular) cutaneous mastocytosis (Q82.2)
- • congenital urticaria pigmentosa (Q82.2)
- • extracutaneous mastocytoma (D47.09)
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • congenital cutaneous mastocytosis (Q82.2)
- • histiocytic neoplasms of uncertain behavior (D47.Z9)
- • malignant mast cell neoplasm (C96.2-)
Clinical Description
ICD-10-CM code D47.01 represents cutaneous mastocytosis. 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 D47.01 has 6 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code D47.01?
ICD-10-CM code D47.01 is "Cutaneous mastocytosis". It belongs to the category: Neoplasms (C00-D49).
Is D47.01 a billable ICD-10 code?
Yes, D47.01 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
What codes are excluded with D47.01?
D47.01 has 6 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in D47.0
Other codes in the same category that may be relevant for differential coding:
🧪 Validate Combinations
Add D47.01 to the Excludes Checker to validate against your full code list.
Open in Checker →Code Information
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)