ICD-10 Code D36.1 – Benign neoplasm of peripheral nerves and autonomic nervous system (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D36.1 – Benign neoplasm of peripheral nerves and autonomic nervous system
What it is
This code identifies a noncancerous tumor arising from peripheral nerves or the autonomic nervous system. It indicates a benign growth, not a malignant neoplasm.
Clinical signs
Clinical features vary; refer to documentation. These lesions may present as a localized mass, pain, numbness, or nerve-related symptoms depending on size and location.
When to use this code
Use D36.1 when the provider documents a benign neoplasm of a peripheral nerve or autonomic nerve structure. It may apply after imaging, biopsy, or surgical pathology confirms a benign nerve tumor. You should code the documented site when available.
Do not use for
Do not use this code for malignant nerve tumors, uncertain behavior, or lesions not documented as benign. Check documentation if the diagnosis is described only as a mass, cyst, or nerve compression.
Coding tip
Verify the exact nerve site and the word “benign” in the record before assigning D36.1.