| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| pN0: No regional lymph node metastasis histologically (i.e., none greater than 0.2 mm), no additional examination for isolated tumor cells (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN0(i-): No regional lymph node metastasis histologically, negative IHC (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN0(i+): No regional lymph node metastasis histologically, positive IHC, no IHC cluster greater than 0.2 mm (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN0(mol-): No regional lymph node metastasis histologically, negative molecular findings (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN0(mol+): No regional lymph node metastasis histologically, positive molecular findings (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN1: Metastasis in 1 to 3 axillary lymph nodes, and/or in internal mammary nodes with microscopic disease detected by sentinel lymph node dissection but not clinically apparent (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN1mi: Micrometastasis (greater than 0.2 mm, none greater than 2.0 mm) (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN1mi(i+): Micrometastasis detected only by immunohistochemistry (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN2: Metastasis in 4 to 9 axillary lymph nodes, or in clinically apparent internal mammary lymph nodes in the absence of axillary lymph node metastasis (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN3a: Metastasis in 10 or more axillary lymph nodes (at least one tumor deposit greater than 2.0 mm), or metastasis to infraclavicular lymph nodes (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN3c: Metastasis in ipsilateral supraclavicular lymph nodes (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pT1: Tumor 2 cm or less in greatest dimension (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pTis: Carcinoma in situ (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pTis: Ductal carcinoma in situ (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pTis: Lobular carcinoma in situ (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pTis: Paget disease without invasive carcinoma (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pT2: Tumor more than 2 cm but not more than 5 cm in greatest dimension (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pT3: Tumor more than 5 cm in greatest dimension (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pT4: Tumor of any size with direct extension to chest wall or skin (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN0(i-): No regional lymph node metastasis histologically, negative morphologic findings for isolated tumor cells (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN0(i+): No regional lymph node metastasis histologically, positive morphologic findings for isolated tumor cells, no cluster greater than 0.2 mm (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN0(mol-): No regional lymph node metastasis histologically, negative nonmorphologic (molecular) findings for isolated tumor cells (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN0(mol+): No regional lymph node metastasis histologically, positive nonmorphologic (molecular) findings for isolated tumor cells (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| pN3b: Tumor of breast with metastasis as per American Joint Committee on Cancer 6th Edition definition (breast) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast regional lymph node staging category N0: No regional lymph node metastasis | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast distant metastasis staging category M0: No clinical or radiographic evidence of distant metastasis | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast primary tumor staging category T0: No evidence of primary tumor | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast primary tumor staging category T1c: Tumor >10 mm but <=20 mm in greatest dimension | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast primary tumor staging category T1mi: Tumor <=1 mm in greatest dimension | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast primary tumor staging category T4: Direct extension to chest wall and/or skin beyond dermis | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast regional lymph node staging category N1: Metastasis to movable ipsilateral level I, II axillary lymph node(s) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast regional lymph node staging category N2 as per American Joint Committee on Cancer 7th edition | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast regional lymph node staging category N3 as per American Joint Committee on Cancer 7th edition | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast regional lymph node staging category pN3 as per American Joint Committee on Cancer 7th edition | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast regional lymph node staging category pN0(mol+): Positive molecular findings, but no regional lymph node metastasis detected by histology or immunohistochemistry | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast regional lymph node staging category pN0(i+): Regional lymph node isolated tumor cell clusters detected by hematoxylin and eosin stain or immunohistochemical methods | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast regional lymph node staging category pN0(i-): No regional lymph node metastasis histologically, negative immunohistochemically | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast primary tumor staging category Tis (LCIS): Lobar carcinoma in situ | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast primary tumor staging category Tis (Paget's) | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast primary tumor staging category TX: Primary tumor cannot be assessed | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast regional lymph node staging category NX: Regional lymph nodes cannot be assessed | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast distant metastasis staging category M1: Distant detectable metastasis found by clinical and radiographic means and/or histologically proven larger than 0.2 mm | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast primary tumor staging category Tis (DCIS): Ductal carcinoma in situ | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast distant metastasis staging category cM0(i+) as per American Joint Committee on Cancer 7th edition | Is a | False | Breast TNM finding | Inferred relationship | Some |  | 
| Neoplasm of breast regional lymph node staging category pN0 as per American Joint Committee on Cancer 7th edition | Is a | False | Breast TNM finding | Inferred relationship | Some |  |