| NCSI | number of combined spherical irradiation |
|---|---|
| SACD | subacute combined degeneration |
| SCD | scleroderma; service-connected disability; sickle-cell disease; spinocerebellar degeneration; subacu... |
| SCID | severe combined immunodeficiency [syndrome]; soft copy image display; Structured Clinical Interview ... |
| SCIDS | severe combined immunodeficiency syndrome |