- Hyperpnea (see also Hyperventilation) 786.01
- Hyperpotassemia 276.7
- Hyperprebetalipoproteinemia 272.1
- Hyperprolactinemia 253.1
- Hyperprolinemia 270.8
- Hyperproteinemia 273.8
- Hyperprothrombinemia 289.89
- Hyperpselaphesia 782.0
- Hyperpyrexia 780.6
- Hyperreactor, vascular 780.2
- Hyperreflexia 796.1
- Hypersalivation (see also Ptyalism) 527.7
- Hypersarcosinemia 270.8
- Hypersecretion
- Hypersegmentation, hereditary 288.2
- Hypersensitive, hypersensitiveness, hypersensitivity - see also Allergy
- Hypersomatotropism (classic) 253.0
- Hypersomnia, unspecified 780.54
- Hypersplenia 289.4
- Hypersplenism 289.4
- Hypersteatosis 706.3
- Hyperstimulation, ovarian 256.1
