- Hyperfunction
- Hypergammaglobulinemia 289.89
- Hyperglobulinemia 273.8
- Hyperglycemia 790.6
- Hyperglyceridemia 272.1
- Hyperglycinemia 270.7
- Hypergonadism
- Hyperheparinemia (see also Circulating anticoagulants) 286.5
- Hyperhidrosis, hyperidrosis 705.21
- Hyperhistidinemia 270.5
- Hyperinsulinism (ectopic) (functional) (organic) NEC 251.1
- Hyperiodemia 276.9
- Hyperirritability (cerebral), in newborn 779.1
- Hyperkalemia 276.7
- Hyperkeratosis (see also Keratosis) 701.1
- Hyperkinesia, hyperkinetic (disease) (reaction) (syndrome) 314.9
- Hyperlacrimation (see also Epiphora) 375.20
- Hyperlipemia (see also Hyperlipidemia) 272.4
- Hyperlipidemia 272.4
- Hyperlipidosis 272.7
- Hyperlipoproteinemia (acquired) (essential) (familial) (hereditary) (primary) (secondary) 272.4
- Hyperlucent lung, unilateral 492.8
