- Premolarization, cuspids 520.2
- Premyeloma 273.1
- Prenatal
- Prepartum - see condition
- Preponderance, left or right ventricular 429.3
- Prepuce - see condition
- PRES (posterior reversible encephalopathy syndrome) 348.39
- Presbycardia 797
- Presbycusis 388.01
- Presbyesophagus 530.89
- Presbyophrenia 310.1
- Presbyopia 367.4
- Prescription of contraceptives NEC V25.02
- Presenile - see also condition
- Presenility 259.8
- Presentation, fetal
- Prespondylolisthesis (congenital) (lumbosacral) 756.11
- Pressure
- Preterm infant NEC 765.1
- Priapism (penis) 607.3
- Prickling sensation (see also Disturbance, sensation) 782.0
- Prickly heat 705.1