ICD-10-CM > C00-D49 > D10-D36 > D31 > D31.4 D31.4 Benign neoplasm of ciliary body Non-Billable/Non-Specific Codes D31.40Benign neoplasm of unspecified ciliary bodyD31.41Benign neoplasm of right ciliary bodyD31.42Benign neoplasm of left ciliary body