| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| pT1mic category | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Clinical stage I C | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Tumor invades optic nerve to cut end of optic nerve (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| pT3: Tumor invades beyond muscularis into periureteric fat (ureter) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT3 (III): Tumor extends to pelvic wall (TNM category and FIGO stage) (vagina) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pN1 (IVA): Unilateral regional lymph node metastasis (pT4) (TNM category and FIGO stage) (vulva) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pN1b: Clinically apparent (macroscopic) metastasis (melanoma of the skin) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Flat tumor lesion (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| Stage IIb: Macroscopic capsular invasion into thymic or surrounding fat, or grossly adherent to, but not breaking through, mediastinal pleura or pericardium (thymus gland) (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| pN1: Metastasis in ipsilateral peribronchial and/or ipsilateral hilar lymph nodes, including intrapulmonary nodes involved by direct extension of the primary tumor (lung) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pN2: Metastasis in 7 to 15 regional (perigastric) lymph nodes (stomach) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Dukes stage C1 (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| Clark melanoma level 2 | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| pT4: Tumor(s) with direct invasion of adjacent organs other than the gallbladder or with perforation of visceral peritoneum (liver, including intrahepatic bile ducts) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T3a: Prostate tumor with extracapsular extension (unilateral or bilateral) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T3: Testicular tumor invades spermatic cord with or without vascular/lymphatic invasion | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT category not identified | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Venous vessels outside tumor indeterminate for tumor involvement | Interprets | True | Lesion observable | Inferred relationship | Some | 3 | 
| Tumor size finding (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| pN4 category | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT1c (IC): Tumor invades one-half or more of the myometrium (TNM category and FIGO stage) (corpus uteri) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT2: Tumor invades muscularis (renal pelvis and ureter) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Venous (large vessel)/lymphatic (small vessel) invasion by tumor absent (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| Ta: Noninvasive papillary carcinoma (urinary tract) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT4: Tumor invades beyond Gerota's fascia (kidney) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Tumor involves both ovaries diffusely, primary tumor site cannot be determined (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| Vascular invasion by tumor present (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 3 | 
| Tumor invades head and neck (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| pM1b: Distant metastasis to site other than celiac lymph nodes (lower thoracic esophagus) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Clinical stage IV A | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T3: Urinary bladder tumor invades perivesical tissue | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pN1: Metastasis in a single regional lymph node (kidney) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT1a (IA): Tumor limited to endometrium (TNM category and FIGO stage) (corpus uteri) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT4: Tumor of any size with direct extension to chest wall or skin (breast) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Tumor invades fascia (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| Tumor invades subfascial structure (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| Tis category | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| National Wilms Tumor Study Group Stage IV (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| Tumor invades beyond pancreatic capsule to bile duct (endocrine pancreas) (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| T1: Breast tumor <= 2 cm in greatest dimension | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| M1 category | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Intratumoral/peritumoral lymphocytic response mild to moderate (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| pN1: Metastasis in a single ipsilateral lymph node, 3 cm or less in greatest dimension (upper aerodigestive tract) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T1 (IC): Trophoblastic disease confined to uterus with two risk factors | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Gleason Pattern 4 | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| Liver TNM finding | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Tumor invasion of optic nerve absent (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| Perineural invasion by tumor absent (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| T1: Kidney tumor < 7.0 cm in greatest dimension limited to the kidney | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T2: Aerodigestive tract tumor extends to supraglottis and/or subglottis, and/or with impaired vocal cord mobility | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Bone TNM finding | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT4: Tumor of lung as per American Joint Committee on Cancer 6th Edition definition (lung) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT3: Tumor limited to the larynx with vocal cord fixation and/or invades any of the following: postcrocoid area, pre-epiglottic tissues, paraglottic space, and/or minor thyroid cartilage erosion (e.g., inner cortex) (larynx, supraglottis) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T2a: Prostate tumor involves one lobe | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Tumor massively invades choroid (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 3 | 
| Scleral stage S0 | Interprets | True | Lesion observable | Inferred relationship | Some | 3 | 
| Metastasis stage pM1 | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT2: Tumor invades beyond the wall of bile duct (extrahepatic bile ducts) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT1 (I): Tumor confined to corpus uteri (TNM category and FIGO stage) (corpus uteri) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| International Federation of Gynecology and Obstetrics endometrial cancer stage I A | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T4: Pancreas tumor extends directly to any of the following: stomach; spleen; colon; adjacent large vessels | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T4: Aerodigestive tract tumor with intracranial extension and/or involvement of cranial nerves, infratemporal fossa, hypopharynx or orbit | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Tumor invasion of perineural tissue present (prostate) (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 3 | 
| pT1 category | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| FIGO stage finding for cervical carcinoma | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| N1: Metastasis in a single ipsilateral lymph node, < 3 cm in greatest dimension | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT1: Tumor 2 cm or less in greatest dimension (lip and oral cavity) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT1b: Tumor involves ipsilateral parietal (mediastinal, diaphragmatic) pleura, with focal involvement of the visceral pleura (thoracic mesothelioma) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT2 (II): Tumor extends outside of uterus but limited to genital structures (ovary, tube, vagina, broad ligaments) (TNM category and FIGO stage) (gestational trophoblast) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Stage IIa: Microscopic transcapsular invasion (thymus gland) (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| M1b: Distant metastasis other than to non-regional lymph nodes and lungs | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT2: Organ confined (prostate) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT2b: Unilateral, involving more than one-half of lobe but not both lobes (prostate) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T1: Tumor size < 1 cm, limited to thyroid | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Tumor limited to the pancreas (endocrine pancreas) (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| pT2b: Tumor extends to the soft tissues of the oropharnyx and/or nasal cavity with parapharyngeal extension (nasopharynx) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT2a: Tumor more than 2 cm, but not more than 5 cm, in greatest dimension, limited to dermis or greater than 2 mm in thickness (carcinoma of skin excluding eyelid, vulva, penis, and melanomas) | Interprets | False | Lesion observable | Inferred relationship | Some | 3 | 
| pN3: Metastasis with a lymph node mass more than 5 cm in greatest dimension (testis) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T1: Aerodigestive tract tumor < 2 cm in greatest dimension | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Tumor stage T4a | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT3: Discontinuous tumors in the primary bone site (osseous primitive neuroectodermal tumor/Ewing's sarcoma) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T4: Renal pelvis/ureter tumor invades adjacent organs, or through the kidney into the perinephric fat | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| N3: Metastasis in a lymph node > 6 cm in greatest dimension | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT3b (IIIB): Involvement of vagina (direct extension or metastasis), rectal or bladder wall (without mucosal involvement), or pelvic wall(s) (frozen pelvis) (TNM category and FIGO stage) (corpus uteri) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Node stage N2b | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT2 (II): Tumor involves one or both fallopian tubes with pelvic extension (TNM category and FIGO stage) (fallopian tube) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT4b: Tumor invades prevertebral fascia, encases carotid artery, or involves mediastinal structures (hypopharynx) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T2: Aerodigestive tract tumor extends to vocal cord(s) with normal or impaired mobility | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T3: Esophageal tumor invades adventitia | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pN1: Pelvic or inguinal lymph node metastasis (vagina) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| N2: Metastasis in 7-15 perigastric lymph nodes | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T1: Tumor limited to pancreas and < 2 cm in greatest dimension | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| T1b: Esophagus/stomach tumor invades submucosa | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Node stage N1bi | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT2a: Tumor invades superficial muscle (inner half) (urinary bladder) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| pT4: Tumor directly invades other organs or structures and/or perforates visceral peritoneum (colon/rectum) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Tumor configuration cannot be determined (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| pT3a: Extraprostatic extension (prostate) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 | 
| Extraprostatic extension of tumor present, focal (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| Dukes stage A (finding) | Interprets | True | Lesion observable | Inferred relationship | Some | 2 | 
| pT3a,b: Tumor invades through the muscularis propria into the subserosa or into non-peritonealized pericolic or perirectal tissues, invades 5 mm or less beyond the border of the muscularis propria (colon/rectum) | Interprets | False | Lesion observable | Inferred relationship | Some | 2 |