D15.9
✓ BillableBenign neoplasm of intrathoracic organ, unspecified
Neoplasms (C00-D49)
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • benign neoplasm of mesothelial tissue (D19.-)
Clinical Description
ICD-10-CM code D15.9 represents benign neoplasm of intrathoracic organ, unspecified. 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 5-character code at the 4th level of specificity. This is the most specific code available in this subcategory. Coders should note that D15.9 has 1 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code D15.9?
ICD-10-CM code D15.9 is "Benign neoplasm of intrathoracic organ, unspecified". It belongs to the category: Neoplasms (C00-D49).
Is D15.9 a billable ICD-10 code?
Yes, D15.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
What codes are excluded with D15.9?
D15.9 has 1 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in D15
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)