• Perinephritic - see condition
  • Perinephritis (see also Infection, kidney) 590.9
  • Perineum, perineal - see condition
  • Perineuritis NEC 729.2
  • Periodic - see also condition
  • Periodontal
  • Periodontitis (chronic) (complex) (compound) (simplex) 523.40
  • Periodontoclasia 523.5
  • Periodontosis 523.5
  • Periods - see also Menstruation
  • Perionychia (with lymphangitis) 681.9
  • Perioophoritis (see also Salpingo-oophoritis) 614.2
  • Periorchitis (see also Orchitis) 604.90
  • Periosteum, periosteal - see condition
  • Periostitis (circumscribed) (diffuse) (infective) 730.3
  • Periostosis (see also Periostitis) 730.3
  • Peripartum cardiomyopathy 674.5
  • Periphlebitis (see also Phlebitis) 451.9
  • Peripneumonia - see Pneumonia
  • Periproctitis 569.49
  • Periprostatitis (see also Prostatitis) 601.9
  • Perirectal - see condition