D21.3
BillableBenign neoplasm of connective and other soft tissue of thorax
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A benign (non-cancerous) tumor that develops in the soft tissues of the chest, such as fat, muscle, or connective tissue. These tumors are not life-threatening but may require monitoring or removal if they cause symptoms or functional problems.
Coding Tips
- •Verify the anatomical location is specifically in the thorax (chest wall, mediastinum, or pleura) rather than other body regions, as this affects code selection
- •Confirm the neoplasm is benign; if malignant or of uncertain behavior, use different D-codes or C-codes accordingly
Excludes 1 — Do NOT code together
Code Hierarchy
└D21Other benign neoplasms of connective and other soft tissue└D21.3Benign neoplasm of connective and other soft tissue of thorax
└D21.3Benign neoplasm of connective and other soft tissue of thorax