| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Creatinine challenge tests | Has measured component | False | Creatinine | Inferred relationship | Some |  | 
| Creatinine measurement, serum | Has measured component | False | Creatinine | Inferred relationship | Some |  | 
| Creatinine measurement, 12 hour urine | Has measured component | False | Creatinine | Inferred relationship | Some |  | 
| Creatinine measurement | Has measured component | False | Creatinine | Inferred relationship | Some |  | 
| Creatinine measurement, 24 hour urine | Has measured component | False | Creatinine | Inferred relationship | Some |  | 
| Fluid sample creatinine measurement (procedure) | Has measured component | False | Creatinine | Inferred relationship | Some |  | 
| Urine creatinine measurement (procedure) | Has measured component | False | Creatinine | Inferred relationship | Some |  | 
| Corrected plasma creatinine measurement | Has measured component | False | Creatinine | Inferred relationship | Some |  | 
| Corrected serum creatinine measurement | Has measured component | False | Creatinine | Inferred relationship | Some |  | 
| Plasma creatinine measurement | Has measured component | False | Creatinine | Inferred relationship | Some |  | 
| Serum creatinine NOS | Has measured component | False | Creatinine | Inferred relationship | Some |  | 
| Creatinine challenge tests | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Creatinine measurement, serum | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Measurement of ratio of analyte to creatinine | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Creatinine measurement, 12 hour urine | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Creatinine measurement | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Creatinine measurement, 24 hour urine | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Fluid sample creatinine measurement (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Urine creatinine measurement (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Corrected plasma creatinine measurement | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Corrected serum creatinine measurement | Component | False | Creatinine | Inferred relationship | Some | 3 | 
| Plasma creatinine measurement | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Serum creatinine NOS | Component | False | Creatinine | Inferred relationship | Some |  | 
| Urine oxalate/creatinine ratio (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Calcium/creatinine ratio measurement | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Urine vanillylmandelic acid/creatinine ratio measurement | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Dopamine/creatinine ratio measurement | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Urine coproporphyrin / creatinine ratio (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Urine uroporphyrin / creatinine ratio (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Dialysis fluid creatinine measurement (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| 5-Hydroxyindoleacetic acid/creatinine ratio measurement (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Aminolevulinic acid/creatinine ratio measurement (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Magnesium / creatinine ratio measurement (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Urine urate / creatinine ratio measurement (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Urine calcium / creatinine ratio measurement (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Retinol binding protein / creatinine ratio measurement (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Urine cortisol/creatinine ratio (procedure) | Component | False | Creatinine | Inferred relationship | Some | 6 | 
| Urine deoxypyridinoline/creatinine ratio (procedure) | Component | False | Creatinine | Inferred relationship | Some | 3 | 
| Measurement of ratio of citrate to creatinine (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Measurement of chromium/creatinine ratio (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Measurement of cobalt/creatinine ratio (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Quantitative measurement of mass concentration of creatinine in peritoneal fluid specimen (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Quantitative measurement of mass concentration of creatinine in postdialysis serum or plasma specimen (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Quantitative measurement of mass concentration of creatinine in 2 hour postperitoneal dialysis fluid specimen (procedure) | Component | False | Creatinine | Inferred relationship | Some | 5 | 
| Quantitative measurement of mass concentration of creatinine in serum or plasma specimen using colorimetric enzyme technique (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Measurement of urea, sodium, potassium, chloride, bicarbonate and creatinine (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Quantitative measurement of mass rate of excretion of creatinine in timed urine specimen (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Quantitative measurement of mass concentration of creatinine in 4 hour postperitoneal dialysis fluid specimen (procedure) | Component | False | Creatinine | Inferred relationship | Some | 5 | 
| Quantitative measurement of mass concentration of creatinine corrected for glucose concentration in overnight peritoneal dialysis fluid specimen (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Quantitative measurement of mass concentration of creatinine in predialysis serum or plasma specimen (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| Measurement of creatinine concentration in serum or plasma specimen with calculation of glomerular filtration rate (procedure) | Component | False | Creatinine | Inferred relationship | Some | 2 | 
| BUN/Creatinine ratio | Component | False | Creatinine | Inferred relationship | Some | 4 | 
| BUN/Creatinine ratio | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Creatinine measurement, 12 hour urine | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Corrected serum creatinine measurement | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Creatinine measurement, 24 hour urine | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Creatinine measurement, serum | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Dopamine/creatinine ratio measurement | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Fluid sample creatinine measurement (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Corrected plasma creatinine measurement | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Dialysis fluid creatinine measurement (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Urine vanillylmandelic acid/creatinine ratio measurement | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Urine uroporphyrin / creatinine ratio (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Urine urate / creatinine ratio measurement (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Urine oxalate/creatinine ratio (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Urine creatinine measurement (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Urine cortisol/creatinine ratio (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Urine deoxypyridinoline/creatinine ratio (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Urine coproporphyrin / creatinine ratio (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Measurement of creatinine concentration in serum or plasma specimen with calculation of glomerular filtration rate (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Plasma creatinine measurement | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Quantitative measurement of mass concentration of creatinine in predialysis serum or plasma specimen (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Quantitative measurement of mass concentration of creatinine in postdialysis serum or plasma specimen (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Quantitative measurement of mass concentration of creatinine in 2 hour postperitoneal dialysis fluid specimen (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Quantitative measurement of mass concentration of creatinine corrected for glucose concentration in overnight peritoneal dialysis fluid specimen (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Quantitative measurement of mass concentration of creatinine in serum or plasma specimen using colorimetric enzyme technique (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Quantitative measurement of mass concentration of creatinine in peritoneal fluid specimen (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Quantitative measurement of mass concentration of creatinine in 4 hour postperitoneal dialysis fluid specimen (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Quantitative measurement of mass rate of excretion of creatinine in timed urine specimen (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Urine calcium / creatinine ratio measurement (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Measurement of cobalt/creatinine ratio (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 | 
| Measurement of chromium/creatinine ratio (procedure) | Component | True | Creatinine | Inferred relationship | Some | 1 |