- Hyporesponsive episode 780.09
- Hyposecretion
- Hyposegmentation of neutrophils, hereditary 288.2
- Hyposiderinemia 280.9
- Hyposmolality 276.1
- Hyposomatotropism 253.3
- Hyposomnia, unspecified (see also Insomnia) 780.52
- Hypospadias (male) 752.61
- Hypospermatogenesis 606.1
- Hyposphagma 372.72
- Hyposplenism 289.59
- Hypostasis, pulmonary 514
- Hypostatic - see condition
- Hyposthenuria 593.89
- Hyposuprarenalism 255.4
- Hypotension (arterial) (constitutional) 458.9
- Hypothermia (accidental) 991.6
- Hypothymergasia (see also Psychosis, affective) 296.2
- Hypothyroidism (acquired) 244.9
- Hypotonia, hypotonicity, hypotony 781.3
- Hypotrichosis 704.09
- Hypotropia 378.32
