| CA | Procedure payable inpatient |
| CB | Esrd bene part a snf-sep pay |
| CC | Procedure code change |
| CD | Amcc test for esrd or mcp md |
| CE | Med neces amcc tst sep reimb |
| CF | Amcc tst not composite rate |
| CG | Policy criteria applied |
| CH | 0 percent impaired, ltd, res |
| CI | 1 to <20 percent impaired |
| CJ | 20 to <40 percent impaired |
| CK | 40 to <60 percent impaired |
| CL | 60 to <80 percent impaired |
| CM | 80 to <100 percent impaired |
| CN | 100 percent impaired, ltd |
| CR | Catastrophe/disaster related |
| CS | Gulf oil 2010 spill related |
