• Apleuria 756.3
  • Apnea, apneic (spells) 786.03
  • Apneumatosis newborn 770.4
  • Apodia 755.31
  • Apophysitis (bone) (see also Osteochondrosis) 732.9
  • Apoplectiform convulsions (see also Disease, cerebrovascular, acute) 436
  • Apoplexia, apoplexy, apoplectic (see also Disease, cerebrovascular, acute) 436
  • Appendage
  • Appendicitis 541
  • Appendiclausis 543.9
  • Appendicolithiasis 543.9
  • Appendicopathia oxyurica 127.4
  • Appendix, appendicular - see also condition
  • Appetite
  • Apprehension, apprehensiveness (abnormal) (state) 300.00
  • Approximal wear 521.10
  • Apraxia (classic) (ideational) (ideokinetic) (ideomotor) (motor) 784.69
  • Aptyalism 527.7
  • Aqueous misdirection 365.83
  • Arabicum elephantiasis (see also Infestation, filarial) 125.9
  • Arachnidism 989.5
  • Arachnitis - see Meningitis