ICD-10-CM > C00-D49 > D10-D36 > D31 > D31.2 D31.2 Benign neoplasm of retina Non-Billable/Non-Specific Type 1 Excludes dark area on retina (D49.81)hemangioma of retina (D49.81)neoplasm of unspecified behavior of retina and choroid (D49.81)retinal freckle (D49.81) Codes D31.20Benign neoplasm of unspecified retinaD31.21Benign neoplasm of right retinaD31.22Benign neoplasm of left retina