| CET | capital expenditure threshold; congenital eyelid tetrad |
|---|---|
| CEU | congenital ectropion uveae; continuing education unit |
| CGFH | congenital fibrous histiocytoma |
| CHB | chronic hepatitis B; complete heart block; congenital heart block |
| CHBA | congenital Heinz body hemolytic anemia |