| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Carcinoma in situ of ventral surface of tongue | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of upper gum | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ tongue base - dorsal surface | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of lower gum | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of anterior two-thirds of tongue - dorsal surface | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of gum | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of skin of buttock | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ lateral floor of mouth | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of mouth | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of common hepatic duct | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Cystic hypersecretory carcinoma | Is a | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| Encapsulated papillary carcinoma | Is a | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| Serous intraepithelial carcinoma | Is a | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| Serous borderline tumor, micropapillary variant | Is a | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| Cystic hypersecretory carcinoma, intraductal | Is a | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| Prostatic intraepithelial neoplasia and adjacent atypia | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of areola of female breast | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of nipple of female breast | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Basal cell carcinoma in situ | Is a | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| Carcinoma in situ of ocular adnexa | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of anal margin | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of skin of penis | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Prostatic intraepithelial neoplasia high grade | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Prostatic intraepithelial neoplasia low grade | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Anogenital papillomaviral intraepithelial neoplasia | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of palate | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of soft palate | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of bronchus and lung | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of nasal cavity and nasopharynx | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of skin of abdomen | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of oral cavity | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of oral cavity, lips, salivary glands | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 5 | 
| Carcinoma in situ of oral cavity, lips, salivary glands | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| Carcinoma in situ of oral cavity, lips, salivary glands | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 4 | 
| Carcinoma in situ of oral cavity, lips, salivary glands | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 3 | 
| Carcinoma in situ of oral cavity, lips, salivary glands | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of postcricoid region | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of parietal pleura | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of pleura | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Porocarcinoma in situ | Is a | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| Carcinoma in situ of left breast | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of right breast | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Squamous cell carcinoma in situ | Is a | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| Surgical margin involved by carcinoma in situ in excised tissue specimen | Relative to | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 5 | 
| Presence of carcinoma in situ at surgical margin in excised tissue specimen | Component | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| High grade prostatic intraepithelial neoplasia | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| [X]Severe vaginal dysplasia, not elsewhere classified | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| [X]In situ neoplasms | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| [X]Carcinoma in situ of other and unspecified parts of intestine | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| [X]Melanoma in situ, unspecified | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| [X]Other carcinoma in situ of breast | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| [X]Carcinoma in situ of respiratory system, unspecified | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| [X]Melanoma in situ of other sites | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| [X]Carcinoma in situ of skin of other sites | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| [X]Carcinoma in situ of other parts of respiratory system | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| [X]Carcinoma in situ of digestive organ, unspecified | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| [X]Carcinoma in situ of skin, unspecified | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| [X]Carcinoma in situ of other parts of cervix | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 2 | 
| [X]Carcinoma in situ of other and unspecified urinary organs | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| [X]Carcinoma in situ of other specified sites | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| [X]Carcinoma in situ of other specified digestive organs | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of other and unspecified small intestine | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of colon NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of other and unspecified female genital organs | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of other and unspecified sites | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| Carcinoma in situ of other specified site NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| Carcinoma in situ NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| Carcinoma in situ of female genital organs NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of digestive organs NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of bronchus or lung NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of other specified site | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier |  | 
| Carcinoma in situ of other and unspecified parts of uterus | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of other specified parts of respiratory system NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of respiratory organ NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of skin of ear or external auricular canal NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of larynx NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of anus NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of lip, oral cavity and pharynx NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of other and unspecified small intestine NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of liver or biliary system NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of other and unspecified digestive organs | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of other specified parts of respiratory system | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of skin of trunk NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of skin of upper limb or shoulder NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of other and unspecified male genital organs | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of male genital organs NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of urinary organs NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of skin of other and unspecified parts of face NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of scalp or skin of neck NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of skin NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of skin of lower limb or hip NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of other specified sites of skin | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of esophagus NOS (disorder) | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of stomach NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of skin of chest wall NOS | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 | 
| Carcinoma in situ of skin of other and unspecified parts of face | Associated morphology | False | Carcinoma in situ - category | Inferred relationship | Existential restriction modifier | 1 |