ICD-10 Code D31.50 – Benign neoplasm of unspecified lacrimal gland and duct (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D31.50 – Benign neoplasm of unspecified lacrimal gland and duct
What it is
This code identifies a noncancerous tumor of the lacrimal gland or duct when the exact site is not specified. Use it when documentation confirms a benign neoplasm but does not name a more precise lacrimal location.
Clinical signs
Clinical features vary; refer to documentation. Benign lacrimal lesions may present with a painless mass, swelling near the outer upper eyelid, or tearing if the drainage system is affected.
When to use this code
Use D31.50 when the provider documents a benign neoplasm involving the lacrimal gland or duct and does not specify laterality or exact anatomic site. It also fits pathology or imaging reports that confirm a benign lesion in this region. If the record identifies a more specific lacrimal structure, code that instead.
Do not use for
Do not use this code for malignant or uncertain neoplasms, inflammatory lacrimal disorders, or cysts without neoplastic wording. Check documentation if the lesion is described only as a mass, swelling, or obstruction.
Coding tip
Code from the most specific lacrimal site documented; use D31.50 only when the record remains unspecified.