ICD-10 Code D37.032 – Neoplasm of uncertain behavior of the submandibular salivary glands (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D37.032 – Neoplasm of uncertain behavior of the submandibular salivary glands
What it is
This code identifies a growth in the submandibular salivary gland whose behavior is uncertain. Use it when the lesion is not clearly documented as benign or malignant.
Clinical signs
Clinical features vary; refer to documentation. Patients may have a palpable submandibular mass, swelling, pain, or incidental imaging findings, but these findings do not determine the code by themselves.
When to use this code
Use D37.032 when the provider documents a submandibular gland neoplasm of uncertain behavior, borderline behavior, or similar wording. Apply it when pathology, imaging, or clinical assessment has not established a benign or malignant diagnosis.
If the record later confirms a specific benign or malignant tumor, code the confirmed diagnosis instead. Check documentation for the final pathology report and site specificity before assigning the code.
Do not use for
Do not use this code for clearly benign submandibular gland tumors or for malignant salivary gland neoplasms. Also avoid it when the lesion is only a cyst, inflammation, or another non-neoplastic condition.
Coding tip
Code the most specific gland site documented and wait for final pathology when the behavior is still uncertain.