| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Malignant tumor of ciliary body | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Malignant tumor of iris | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Malignant tumor of lacrimal gland | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Overlapping malignant neoplasm of eye and adnexa, primary | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm of eyelid | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of choroid | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm of eyeball excluding conjunctiva, cornea, retina and choroid | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm of crystalline lens | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm of sclera | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm, overlapping lesion of eye and adnexa | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Malignant tumor of optic nerve and sheath | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Malignant melanoma of eye | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm of other specified site of eye | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm of eye NOS | Is a | False | Primary malignant neoplasm of eye, primary (disorder) | Inferred relationship | Existential restriction modifier |  |