- Plasmacytosis 288.64
- Plaster ulcer (see also Ulcer, pressure) 707.00
- Plateau iris syndrome 364.82
- Platybasia 756.0
- Platyonychia (congenital) 757.5
- Platypelloid pelvis 738.6
- Platyspondylia 756.19
- Plethora 782.62
- Pleura, pleural - see condition
- Pleuralgia 786.52
- Pleurisy (acute) (adhesive) (chronic) (costal) (diaphragmatic) (double) (dry) (fetid) (fibrinous) (fibrous) (interlobar) (latent) (lung) (old) (plastic) (primary) (residual) (sicca) (sterile) (subacute) (unresolved) (with adherent pleura) 511.0
- Pleuritis sicca - see Pleurisy
- Pleurobronchopneumonia (see also Pneumonia, broncho-) 485
- Pleurodynia 786.52
- Pleurohepatitis 573.8
- Pleuropericarditis (see also Pericarditis) 423.9
- Pleuropneumonia (acute) (bilateral) (double) (septic) (see also Pneumonia) 486
- Pleurorrhea (see also Hydrothorax) 511.89
- Plexitis, brachial 353.0
- Plica
- Plicae dysphonia ventricularis 784.49
- Plicated tongue 529.5