ICD-10-CM > C00-D49 > D10-D36 > D31 > D31.5 D31.5 Benign neoplasm of lacrimal gland and duct Non-Billable/Non-Specific Applicable To Benign neoplasm of lacrimal sacBenign neoplasm of nasolacrimal duct Codes D31.50Benign neoplasm of unspecified lacrimal gland and ductD31.51Benign neoplasm of right lacrimal gland and ductD31.52Benign neoplasm of left lacrimal gland and duct