- Paraproteinemia 273.2
- Parapsoriasis 696.2
- Parascarlatina 057.8
- Parasitic - see also condition
- Parasitism NEC 136.9
- Parasitophobia 300.29
- Parasomnia 307.47
- Paraspadias 752.69
- Paraspasm facialis 351.8
- Parathyroid gland - see condition
- Parathyroiditis (autoimmune) 252.1
- Parathyroprival tetany 252.1
- Paratrachoma 077.0
- Paratyphilitis (see also Appendicitis) 541
- Paratyphoid (fever) - see Fever, paratyphoid
- Paratyphus - see Fever, paratyphoid
- Paraurethral duct 753.8
- Paravaccinia NEC 051.9
- Paravaginitis (see also Vaginitis) 616.10
- Parencephalitis (see also Encephalitis) 323.9
- Parergasia 298.9
- Paresis (see also Paralysis) 344.9