| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Electrocardiogram wave, interval AND/OR segment | Is a | True | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Systole, function | Is a | True | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Hemodynamic waveform, function | Is a | True | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Cardiac conduction, function (observable entity) | Is a | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Heart sound, function | Is a | True | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Cardiac wall motion, function | Is a | True | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Cardiac flow, function | Is a | True | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Cardiac end diastolic volume, function (observable entity) | Is a | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Apex beat, function | Is a | True | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Cardiac ejection fraction, function | Is a | True | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Cardiac rhythm, function (observable entity) | Is a | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Cardiac rate | Is a | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Diastole, function | Is a | True | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Decreased cardiac index | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Decreased cardiac function | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Decreased cardiac stroke volume | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Decreased cardiac output | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Evaluation of postoperative cardiac function | Component | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Identification of baseline cardiac function | Component | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Cardiac akinesia | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Ventricular asynergy | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Abnormal cardiovascular function | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Left ventricular wall akinetic | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Left ventricular wall dyskinetic | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Akinetic right ventricular wall | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Hyperkinetic right ventricular wall | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Paradoxical right ventricular wall | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Portasystemic shunt | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Bidirectional cardiovascular shunt | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Aborted systole | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Cardiac dyskinesia | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Increased cardiac function | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Increased cardiac output | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Diastolic dysfunction | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Increased cardiac index | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Atrial dyskinesia | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Normal cardiovascular function | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Normal blood volume | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Left to right cardiovascular shunt | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Normal cardiac index | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Electro-mechanical dissociation caused by cardiac pacemaker | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Parasympathetic cardiovascular function disorder | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Detection of cardiac shunt | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Right to left cardiovascular shunt | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Increased cardiac stroke volume | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Normal cardiac stroke volume | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Right atrial to left ventricular shunt | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Functional cardiovascular finding | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Systolic dysfunction | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Hyperkinetic ventricular wall | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Normal ventricular wall motion | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Hyperkinesis of region of cardiac wall | Interprets | False | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Cold pressor test | Component | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Cardiovascular diagnostic imaging procedure | Component | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Cardiovascular function test | Component | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Measurement of cardiovascular function | Component | False | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Decreased cardiac function | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Ability to achieve target heart rate | Is a | True | Cardiac function | Inferred relationship | Existential restriction modifier |  | 
| Decreased cardiac stroke volume index | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Disorder of cardiac function | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Chronic right-sided heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Acute congestive heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Bernheim's syndrome | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Ayerza's syndrome | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 4 | 
| Chronic cor pulmonale | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 4 | 
| Chronic right-sided congestive heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Rheumatic tricuspid valve regurgitation | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 4 | 
| Cardiac asthma | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Acute left-sided congestive heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Cardiac insufficiency following cardiac surgery | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 4 | 
| Left heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Rheumatic pulmonary valve stenosis with insufficiency | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 4 | 
| Dysfunction of papillary muscle | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Chronic congestive heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Cardiac insufficiency during AND/OR resulting from a procedure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Cardiac failure after obstetrical surgery AND/OR other procedure including delivery | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Incoordination of papillary muscle | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Acute heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Acute right-sided congestive heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 1 | 
| Malignant hypertensive heart disease with congestive heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Pulmonic valve regurgitation | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Rheumatic heart valve failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 4 | 
| Biventricular congestive heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Dynamic subaortic stenosis | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Incompetence of papillary muscle | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Cardiac tamponade | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Rheumatic mitral regurgitation | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 4 | 
| Postvalvulotomy syndrome | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 4 | 
| Congestive heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Rheumatic left ventricular failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 4 | 
| Low cardiac output syndrome | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Right heart failure secondary to left heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Low output heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Hyperkinetic heart disease | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Kyphoscoliotic heart disease | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 | 
| Hypertensive heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Chronic heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Hypertensive heart disease with congestive heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| Chronic left-sided congestive heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 3 | 
| High output heart failure | Interprets | True | Cardiac function | Inferred relationship | Existential restriction modifier | 2 |