| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Overlapping malignant neoplasm of bronchus and lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Kaposi's sarcoma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Malignant tumor of lung parenchyma | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Non-small cell lung cancer | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Pancoast tumor | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Local recurrence of malignant tumor of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of hilus of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Metastatic malignant neoplasm to lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm of upper lobe of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm of middle lobe, bronchus or lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm of lower lobe, bronchus or lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm of upper lobe, bronchus or lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm of other sites of bronchus or lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| [X]Malignant neoplasm of bronchus or lung, unspecified | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Malignant neoplasm of bronchus or lung NOS | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Adenocarcinoma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Carcinoid tumor of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Carcinoma of lung parenchyma | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Overlapping malignant neoplasm of bronchus and lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of lower lobe, bronchus or lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of middle lobe, bronchus or lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of upper lobe, bronchus or lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of lower lobe of left lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of upper lobe of left lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of right lower lobe of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of right middle lobe of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of upper lobe of right lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Bronchioloalveolar carcinoma | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Personal history of primary malignant neoplasm of lung | Associated finding | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier | 1 | 
| Alpha heavy chain disease, respiratory form | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Squamous cell carcinoma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Personal history of primary malignant neoplasm of lung | Associated finding | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier | 1 | 
| Non-Hodgkin's lymphoma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Epithelioid hemangioendothelioma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary pleomorphic carcinoma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary carcinosarcoma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary pseudosarcomatous carcinoma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary basaloid squamous cell carcinoma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary clear cell squamous cell carcinoma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary undifferentiated carcinoma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary spindle cell carcinoma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary papillary squamous cell carcinoma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Pleuropulmonary blastoma | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary adenocarcinoma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Pulmonary blastoma | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary small cell non-keratinizing squamous cell carcinoma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary acinar cell carcinoma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary signet ring cell carcinoma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary mucoepidermoid carcinoma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neuroendocrine neoplasm of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Large cell carcinoma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Small cell carcinoma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Acinar cell cystadenocarcinoma of lung | Is a | False | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of left lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary malignant neoplasm of right lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary small cell malignant neoplasm of lung, TNM stage 1 | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary small cell malignant neoplasm of lung, TNM stage 2 | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary small cell malignant neoplasm of lung, TNM stage 3 | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary small cell malignant neoplasm of lung, TNM stage 4 | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Extensive stage primary small cell carcinoma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary large cell carcinoma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary squamous cell carcinoma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary acinar cell cystadenocarcinoma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary epithelioid hemangioendothelioma of lung | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary non-small cell lung cancer | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  | 
| Primary Pancoast tumor | Is a | True | Primary malignant neoplasm of lung | Inferred relationship | Existential restriction modifier |  |