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Disease index · O
Disease index · Modifiers and references
OHS(obesity hypoventilation syndrome)→Obermeyer's relapsing fever(European)→Obesity→Oblique→Obliteration→Observation(following) (for) (without need for further medical care)→Obsession, obsessional state→Obsessive-compulsive neurosis or reaction→Obstetric embolism, septic→Obstetrical trauma(complicating delivery)→Obstipation→Obstruction, obstructed, obstructive→Obturator→Occlusal wear, teeth→Occlusio pupillae→Occlusion, occluded→Occult→Occupational→Ochlophobia→Ochronosis(endogenous)→Ocular muscle→Oculogyric crisis or disturbance→Oculomotor syndrome→Oculopathy→Oddi's sphincter spasm→Odontalgia→Odontoameloblastoma→Odontoclasia→Odontodysplasia, regional→Odontogenesis imperfecta→Odontoma(ameloblastic) (complex) (compound) (fibroameloblastic)→Odontomyelitis(closed) (open)→Odontorrhagia→Odontosarcoma, ameloblastic→Oestriasis→Oguchi's disease→Ohara's disease→Oidiomycosis→Oidium albicans infection→Old age(without mention of debility)→Old(previous) myocardial infarction→Olfactory→Oligemia→Oligoastrocytoma→Oligocythemia→Oligodendroblastoma→Oligodendroglioma→Oligodontia→Oligoencephalon→Oligohidrosis→Oligohydramnios→Oligohydrosis→Oligomenorrhea→Oligophrenia→Oligospermia→Oligotrichia→Oliguria→Ollier's disease→Omentitis→Omentocele→Omentum, omental→Omphalitis(congenital) (newborn)→Omphalocele→Omphalomesenteric duct, persistent→Omphalorrhagia, newborn→Omsk hemorrhagic fever→Onanism(excessive)→Onchocerciasis, onchocercosis→Oncocytoma→Oncovirus, as cause of disease classified elsewhere→Ondine's curse→Oneirophrenia→Onychauxis→Onychia→Onychitis→Onycho-osteodysplasia→Onychocryptosis→Onychodystrophy→Onychogryphosis, onychogryposis→Onycholysis→Onychomadesis→Onychomalacia→Onychomycosis(finger) (toe)→Onychophagia→Onychophosis→Onychoptosis→Onychorrhexis→Onychoschizia→Onyxis(finger) (toe)→Onyxitis→Oophoritis(cystic) (infectional) (interstitial)→Oophorocele→Opacity, opacities→Opalescent dentin(hereditary)→Open, opening→Operational fatigue→Operative→Operculitis→Operculum→Ophiasis→Ophthalmia→Ophthalmitis→Ophthalmocele(congenital)→Ophthalmoneuromyelitis→Ophthalmopathy, Graves'→Ophthalmoplegia→Opioid(s)→Opisthognathism→Opisthorchiasis(felineus) (viverrini)→Opitz' disease→Opiumism→Oppenheim's disease→Oppenheim-Urbach disease(necrobiosis lipoidica diabeticorum)→Opportunistic salpingectomy→Optic nerve→Orbit→Orbitopathy(Graves') (thyroid)→Orchioblastoma→Orchitis(gangrenous) (nonspecific) (septic) (suppurative)→Orf(virus disease)→Organic→Orgasm→Oriental→Orifice→Origin of both great vessels from right ventricle→Ormond's disease(with ureteral obstruction)→Ornithine metabolism disorder→Ornithinemia(Type I) (Type II)→Ornithosis→Orotaciduria, oroticaciduria(congenital) (hereditary) (pyrimidine deficiency)→Orthodontics→Orthopnea→Orthopoxvirus→Os, uterus→Osgood-Schlatter disease or osteochondrosis→Osler's nodes→Osler(-Weber)-Rendu disease→Osmidrosis→Osseous→Ossification→Osteitis→Osteo-onycho-arthro-dysplasia→Osteo-onychodysplasia, hereditary→Osteoarthritis→Osteoarthropathy(hypertrophic)→Osteoarthrosis(degenerative) (hypertrophic) (joint)→Osteoblastoma→Osteochondritis→Osteochondroarthrosis deformans endemica→Osteochondrodysplasia→Osteochondrodystrophy→Osteochondrolysis→Osteochondroma→Osteochondromatosis→Osteochondromyxosarcoma→Osteochondropathy→Osteochondrosarcoma→Osteochondrosis→Osteoclastoma→Osteodynia→Osteodystrophy→Osteofibroma→Osteofibrosarcoma→Osteogenesis imperfecta→Osteogenic→Osteolysis→Osteoma→Osteomalacia→Osteomyelitis(general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis)→Osteomyelofibrosis→Osteomyelosclerosis→Osteonecrosis→Osteopathia condensans disseminata→Osteopathy→Osteopenia→Osteoperiostitis→Osteopetrosis(familial)→Osteophyte→Osteopoikilosis→Osteoporosis(female) (male)→Osteopsathyrosis(idiopathica)→Osteoradionecrosis, jaw(acute) (chronic) (lower) (suppurative) (upper)→Osteosarcoma(any form)→Osteosclerosis→Osteosclerotic anemia→Osteosis→Ostium→Ostrum-Furst syndrome→Otalgia→Otitis(acute)→Otocephaly→Otolith syndrome→Otomycosis(diffuse) NEC→Otoporosis→Otorrhagia(nontraumatic)→Otorrhea→Otosclerosis(general)→Otospongiosis→Otto's disease or pelvis→Outcome of delivery→