ICD-10 Code D48.7 – Neoplasm of uncertain behavior of other specified sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D48.7 – Neoplasm of uncertain behavior of other specified sites
What it is
D48.7 identifies a growth whose behavior cannot be confidently classified as benign or malignant in other specified sites. Use it when the record describes an uncertain neoplasm and a more specific site code is not available.
Clinical signs
Clinical features vary; refer to documentation. These lesions are often noted as a mass, nodule, or abnormal tissue finding, with diagnosis based on imaging, biopsy, or pathology when available.
When to use this code
Use this code when the provider documents a neoplasm of uncertain behavior in a site that is not named by a more specific ICD-10 code. It may also fit when the pathology report states uncertain or borderline behavior and the chart does not support a benign or malignant diagnosis. Check documentation for the exact anatomic site.
Do not use for
Do not use D48.7 for clearly benign, malignant, or in situ neoplasms. Avoid it when a site-specific uncertain behavior code exists, or when the record only describes a suspected lesion without a confirmed neoplasm.
Coding tip
Verify the exact site and pathology wording before assigning D48.7.