| Abbreviations | Meaning |
 | CCHS | Congenital Central Hypoventilation Syndrome; Copenhagen City Heart Study |
 | CNS | Congenital Nephrotic Syndrome |
 | CHB | Chronic Hepatitis B; Complete Heart Block; Congenital Heart Block |
 | LCA | Leber Congenital Amaurosis |
 | CSB | Congenital Short Bowel |
 | CBAVD | Congenital Bilateral Absence Of Vas Deferens |
 | CVM | Congenital Vascular Malformation |
 | CCHD | Cyanotic Congenital Heart Disease |
 | CMG | Canine Or Congenital Myasthenia Gravis; Case Mix Group; Chopped Meat Glucose [medium]; Cystometrography, Cystometrogram |
 | FCMD | Fukuyama Congenital Muscular Dystrophy |
 | EUROHAZCON | Congenital Anomalies Near Hazardous Waste Landfill Sites In Europe [study] |
 | CH | Congenital Hypothyroidism |
 | CONGHD | Congenital Heart Disease |
 | CNSHA | Congenital Nonspherocytic Hemolytic Anemia |
 | CDD | Congenital Diaphragmatic Defect |