| NOD | Naito-Oyanagi disease; National Organization on Disability; nodular melanoma; nonobese diabetic; not... |
|---|---|
| NSCD | nonservice connected disability |
| PDI | pain disability index; periodontal disease index; plan-do integration; psychomotor development index... |
| PPD | packs per day; paraphenylenediamine; percussion and postural drainage; permanent partial disability;... |
| P&T | permanent and total [disability]; pharmacy and therapeutics |