ICD-10-CM Alphabetic Index to Diseases and Injuries
Main terms: O
Look up a condition by its main term, then follow the indented subterms to the most specific code. Always confirm the code in the tabular list.
- Obermeyer's relapsing fever (European) A68.0
- Obesity E66.9 · 43
- Oblique
- Obliteration · 17
- Observation (following) (for) (without need for further medical care) Z04.9 · 63
- Obsession, obsessional state F42.8 · 1
- Obsessive-compulsive neurosis or reaction F42.8
- Obstetric embolism, septic
- Obstetrical trauma (complicating delivery) O71.9 · 2
- Obstipation
- Obstruction, obstructed, obstructive · 245
- Obturator
- Occlusal wear, teeth K03.0
- Occlusio pupillae
- Occlusion, occluded · 194
- Occult · 1
- Occupational · 1
- Ochlophobia
- Ochronosis (endogenous) E70.29
- Ocular muscle
- Oculogyric crisis or disturbance H51.8 · 1
- Oculomotor syndrome H51.9
- Oculopathy · 6
- Oddi's sphincter spasm K83.4
- Odontalgia K08.89
- Odontoameloblastoma
- Odontoclasia K03.89
- Odontodysplasia, regional K00.4
- Odontogenesis imperfecta K00.5
- Odontoma (ameloblastic) (complex) (compound) (fibroameloblastic)
- Odontomyelitis (closed) (open) K04.01 · 2
- Odontorrhagia K08.89
- Odontosarcoma, ameloblastic C41.1 · 1
- Oestriasis
- Oguchi's disease H53.63
- Ohara's disease
- OHS (obesity hypoventilation syndrome) E66.2
- Oidiomycosis
- Oidium albicans infection
- Old age (without mention of debility) R54 · 1
- Old (previous) myocardial infarction I25.2
- Olfactory
- Oligemia
- Oligoastrocytoma · 2
- Oligocythemia D64.9
- Oligodendroblastoma · 2
- Oligodendroglioma · 5
- Oligodontia
- Oligoencephalon Q02
- Oligohidrosis L74.4
- Oligohydramnios O41.0-
- Oligohydrosis L74.4
- Oligomenorrhea N91.5 · 2
- Oligophrenia · 1
- Oligospermia N46.11 · 7
- Oligotrichia
- Oliguria R34 · 3
- Ollier's disease Q78.4
- Omentitis
- Omentocele
- Omentum, omental
- Omphalitis (congenital) (newborn) P38.9 · 4
- Omphalocele Q79.2
- Omphalomesenteric duct, persistent Q43.0
- Omphalorrhagia, newborn P51.9
- Omsk hemorrhagic fever A98.1
- Onanism (excessive) F98.8
- Onchocerciasis, onchocercosis B73.1 · 8
- Oncocytoma
- Oncovirus, as cause of disease classified elsewhere B97.32
- Ondine's curse
- Oneirophrenia F23
- Onychauxis L60.2 · 1
- Onychia · 3
- Onychitis · 1
- Onychocryptosis L60.0
- Onychodystrophy L60.3 · 1
- Onychogryphosis, onychogryposis L60.2
- Onycholysis L60.1
- Onychomadesis L60.8
- Onychomalacia L60.3
- Onychomycosis (finger) (toe) B35.1
- Onycho-osteodysplasia Q87.2
- Onychophagia F98.8
- Onychophosis L60.8
- Onychoptosis L60.8
- Onychorrhexis L60.3 · 1
- Onychoschizia L60.3
- Onyxis (finger) (toe) L60.0
- Onyxitis · 1
- Oophoritis (cystic) (infectional) (interstitial) N70.92 · 6
- Oophorocele N83.4-
- Opacity, opacities · 16
- Opalescent dentin (hereditary) K00.5
- Open, opening · 16
- Operational fatigue F48.8
- Operative
- Operculitis
- Operculum
- Ophiasis L63.2
- Ophthalmia H10.9 · 15
- Ophthalmitis
- Ophthalmocele (congenital) Q15.8
- Ophthalmoneuromyelitis G36.0
- Ophthalmopathy, Graves' H05.83-
- Ophthalmoplegia · 16
- Opioid (s) · 8
- Opisthognathism M26.09
- Opisthorchiasis (felineus) (viverrini) B66.0
- Opitz' disease D73.2
- Opiumism
- Oppenheim's disease G70.2
- Oppenheim-Urbach disease (necrobiosis lipoidica diabeticorum)
- Opportunistic salpingectomy Z40.82
- Optic nerve
- Orbit
- Orbitopathy (Graves') (thyroid) H05.83-
- Orchioblastoma C62.9-
- Orchitis (gangrenous) (nonspecific) (septic) (suppurative) N45.2 · 7
- Orf (virus disease) B08.02
- Organic · 4
- Orgasm · 1
- Oriental · 2
- Orifice
- Origin of both great vessels from right ventricle Q20.1
- Ormond's disease (with ureteral obstruction) N13.5 · 1
- Ornithine metabolism disorder E72.4
- Ornithinemia (Type I) (Type II) E72.4
- Ornithosis A70
- Orotaciduria, oroticaciduria (congenital) (hereditary) (pyrimidine deficiency) E79.89 · 1
- Orthodontics · 2
- Orthopnea R06.01
- Orthopoxvirus B08.09
- Os, uterus
- Osgood-Schlatter disease or osteochondrosis M92.52-
- Osler (-Weber)-Rendu disease I78.0
- Osler's nodes I33.0
- Osmidrosis L75.0
- Osseous
- Ossification · 45
- Osteitis · 61
- Osteoarthritis M19.90 · 112
- Osteoarthropathy (hypertrophic) M19.90 · 37
- Osteoarthrosis (degenerative) (hypertrophic) (joint) · 6
- Osteoblastoma · 1
- Osteochondroarthrosis deformans endemica
- Osteochondritis · 25
- Osteochondrodysplasia Q78.9 · 3
- Osteochondrodystrophy E78.9
- Osteochondrolysis
- Osteochondroma
- Osteochondromatosis D16.9 · 1
- Osteochondromyxosarcoma
- Osteochondropathy M93.90 · 28
- Osteochondrosarcoma
- Osteochondrosis · 124
- Osteoclastoma D48.0 · 1
- Osteodynia
- Osteodystrophy Q78.9 · 4
- Osteofibroma
- Osteofibrosarcoma
- Osteogenesis imperfecta Q78.0
- Osteogenic
- Osteolysis M89.50 · 24
- Osteoma · 2
- Osteomalacia M83.9 · 36
- Osteomyelitis (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis) M86.9 · 201
- Osteomyelofibrosis D47.4
- Osteomyelosclerosis D75.89
- Osteonecrosis M87.9 · 170
- Osteo-onycho-arthro-dysplasia Q87.2
- Osteo-onychodysplasia, hereditary Q87.2
- Osteopathia condensans disseminata Q78.8
- Osteopathy · 26
- Osteopenia M85.8- · 1
- Osteoperiostitis
- Osteopetrosis (familial) Q78.2
- Osteophyte M25.70 · 10
- Osteopoikilosis Q78.8
- Osteoporosis (female) (male) M81.0 · 103
- Osteopsathyrosis (idiopathica) Q78.0
- Osteoradionecrosis, jaw (acute) (chronic) (lower) (suppurative) (upper) M27.2
- Osteosarcoma (any form)
- Osteosclerosis Q78.2 · 4
- Osteosclerotic anemia D64.89
- Osteosis · 2
- Österreicher-Turner syndrome Q87.2
- Ostium · 3
- Ostrum-Furst syndrome Q75.8
- Otalgia
- Otitis (acute) H66.90 · 124
- Otocephaly Q18.2
- Otolith syndrome
- Otomycosis (diffuse) NEC B36.9 · 4
- Otoporosis
- Otorrhagia (nontraumatic) H92.2- · 1
- Otorrhea H92.1- · 5
- Otosclerosis (general) H80.9- · 10
- Otospongiosis
- Otto's disease or pelvis M24.7
- Outcome of delivery Z37.9 · 21
- Outlet
- Ovalocytosis (congenital) (hereditary)
- Ovarian
- Ovariocele N83.4-
- Ovaritis (cystic)
- Ovary, ovarian · 2
- Overactive · 4
- Overactivity R46.3 · 1
- Overbite (deep) (excessive) (horizontal) (vertical) M26.29
- Overbreathing
- Overconscientious personality F60.5
- Overdevelopment
- Overdistension
- Overdose, overdosage (drug)
- Overeating R63.2 · 2
- Overexertion (effects) (exhaustion) T73.3
- Overexposure (effects) T73.9 · 1
- Overfeeding · 1
- Overfill, endodontic M27.52
- Overgrowth · 8
- Overhanging of dental restorative material (unrepairable) K08.52
- Overheated (places) (effects)
- Overjet (excessive horizontal) M26.23
- Overlaid, overlying (suffocation)
- Overlap, excessive horizontal (teeth) M26.23
- Overlapping toe (acquired) · 1
- Overload · 7
- Overnutrition
- Overproduction · 3
- Overprotection, child by parent Z62.1
- Overriding · 5
- Overstrained R53.83 · 1
- Overuse, muscle NEC M70.8-
- Overweight E66.3
- Overworked R53.83
- Oviduct
- Ovotestis Q56.0
- Ovulation (cycle) · 2
- Ovum
- Owren's disease or syndrome (parahemophilia) D68.2
- Ox heart
- Oxalosis E72.53
- Oxaluria E72.53
- Oxycephaly, oxycephalic Q75.009 · 1
- Oxyuriasis B80
- Oxyuris vermicularis (infestation) B80
- Ozena J31.0