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2009 ICD-9-CM

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Onychophagy 307.9
Onychoptosis 703.8
Onychorrhexis 703.8
Onychoschizia 703.8
Onychotrophia (see also Atrophy, nail) 703.8
O'Nyong Nyong fever 066.3
Onyxis (finger) (toe) 703.0
Onyxitis (with lymphangitis) 681.9
Oocyte (egg) (ovum)
Oophoritis (cystic) (infectional) (interstitial) (see also Salpingo-oophoritis) 614.2
Opacity, opacities
Opalescent dentin (hereditary) 520.5
Open, opening
Operation
Operational fatigue 300.89
Operative - see condition
Operculitis (chronic) 523.40
Operculum, retina 361.32
Ophiasis 704.01
Ophthalmia (see also Conjunctivitis) 372.30
Ophthalmitis - see Ophthalmia
Ophthalmocele (congenital) 743.66
Ophthalmoneuromyelitis 341.0
Ophthalmopathy, infiltrative with thyrotoxicosis 242.0
Ophthalmoplegia (see also Strabismus) 378.9
Opisthognathism 524.00
Opisthorchiasis (felineus) (tenuicollis) (viverrini) 121.0
Opisthotonos, opisthotonus 781.0
Opitz's disease (congestive splenomegaly) 289.51
Opiumism (see also Dependence) 304.0
Oppenheim's disease 358.8
Oppenheim-Urbach disease or syndrome (necrobiosis lipoidica diabeticorum) 250.8 [709.3]
Opsoclonia 379.59
Optic nerve - see condition
Orbit - see condition
Orchioblastoma (M9071/3) 186.9
Orchitis (nonspecific) (septic) 604.90
Orf 051.2
Organic - see also condition
Oriental
Orientation
Orifice - see condition
Origin, both great vessels from right ventricle 745.11
Ormond's disease or syndrome 593.4
Ornithosis 073.9
Orodigitofacial dysostosis 759.89
Oropouche fever 066.3
Orotaciduria, oroticaciduria (congenital) (hereditary) (pyrimidine deficiency) 281.4
Oroya fever 088.0
Orthodontics V58.5
 
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