ICD-10 Code D36.0 – Benign neoplasm of lymph nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D36.0 – Benign neoplasm of lymph nodes
What it is
D36.0 identifies a noncancerous tumor arising in a lymph node. Use it when documentation clearly states a benign neoplasm of lymph nodes, not reactive enlargement or malignant disease.
Clinical signs
Findings may include a localized, usually painless lymph node mass or enlargement. Clinical features vary; refer to documentation, and confirm that the provider describes a benign neoplastic process.
When to use this code
Use D36.0 when the record specifically documents a benign tumor of a lymph node, such as after pathology or specialist assessment. It may also apply when the provider states “benign neoplasm” without naming a more specific site. If the note only says lymphadenopathy or enlarged nodes, check documentation.
Do not use for
Do not use this code for malignant lymphoma, metastatic lymph node disease, or nonspecific lymphadenopathy. Those conditions require different coding based on the documented diagnosis.
Coding tip
Code the documented pathology wording exactly, and query the provider if the record does not clearly distinguish benign neoplasm from other lymph node disorders.