ICD-10 Code D31.51 – Benign neoplasm of right lacrimal gland and duct (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D31.51 – Benign neoplasm of right lacrimal gland and duct
What it is
D31.51 identifies a noncancerous growth in the right lacrimal gland or duct system. Use it when documentation specifically states a benign neoplasm on the right side.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records may note a localized mass, swelling, or lacrimal drainage symptoms, but the diagnosis should be confirmed by provider assessment.
When to use this code
Use D31.51 when the provider documents a benign tumor of the right lacrimal gland or duct. It is appropriate for operative, pathology, or specialist notes that clearly identify the lesion as benign and right-sided.
If the chart only mentions an orbital mass, eye lump, or lacrimal disorder without a benign neoplasm diagnosis, check documentation before coding. Side-specific documentation matters for correct code selection.
Do not use for
Do not use this code for malignant, uncertain, or unspecified lacrimal tumors. Also avoid it when the record describes inflammation, obstruction, or a nonspecific eye lesion instead of a benign neoplasm.
Coding tip
Confirm both benign behavior and right-sided location in the provider note before assigning D31.51.