2025 ICD-10-CM Diseases and Injuries - Index "N"
The ICD-10-CM Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s). To find the ICD-10-CM code for a specific condition browse this alphabetical index of clinical terms and conditions. Keep in mind that a condition may not appear under the exact same phrasing so make sure to use synonyms. Once you have identified the condition the ICD-10-CM code(s) should be listed next to that condition.
- Naegeli's
- Naegleriasis (with meningoencephalitis)
- Naffziger's syndrome
- Naga sore
- Nägele's pelvis
- Nail
- Nanism, nanosomia
- Nanophyetiasis
- Nanukayami
- Napkin rash
- Narcolepsy
- Narcosis
- Narcotism
- NARP (Neuropathy, Ataxia and Retinitis pigmentosa) syndrome
- Narrow
- Narrowing
- Narrowness, abnormal, eyelid
- Nasal
- Nasolachrymal, nasolacrimal
- Nasopharyngeal
- Nasopharyngitis (acute) (infective) (streptococcal) (suba
- Nasopharynx, nasopharyngeal
- Natal tooth, teeth
- Nausea (without vomiting)
- Navel
- Neapolitan fever
- Near drowning
- Nearsightedness
- Near-syncope
- Nebula, cornea
- Necator americanus infestation
- Necatoriasis
- Neck
- Necrobiosis
- Necrolysis, toxic epidermal
- Necrophilia
- Necrosis, necrotic (ischemic)
- Necrospermia
- Need (for)
- Neglect
- Neisserian infection NEC
- Nelaton's syndrome
- Nelson's syndrome
- Nematodiasis (intestinal)
- Neonatal
- Neonatorum
- Neoplasia
- Neoplasm, neoplastic
- Neovascularization
- Nephralgia
- Nephritis, nephritic (albuminuric) (azotemic) (congenital)
- Nephroblastoma (epithelial) (mesenchymal)
- Nephrocalcinosis
- Nephrocystitis, pustular
- Nephrolithiasis (congenital) (pelvis) (recurrent)
- Nephroma
- Nephronephritis
- Nephronophthisis
- Nephropathia epidemica
- Nephropathy
- Nephroptosis
- Nephropyosis
- Nephrorrhagia
- Nephrosclerosis (arteriolar) (arteriosclerotic) (chronic)
- Nephrosis, nephrotic (Epstein's) (syndrome) (congenital)
- Nephrosonephritis, hemorrhagic (endemic)
- Nephrostomy
- Nerve
- Nerves
- Nervous
- Nervousness
- Nesidioblastoma
- Nettleship's syndrome
- Neumann's disease or syndrome
- Neuralgia, neuralgic (acute)
- Neurapraxia
- Neurasthenia
- Neurilemmoma
- Neurilemmosarcoma
- Neurinoma
- Neurinomatosis
- Neuritis (rheumatoid)
- Neuroastrocytoma
- Neuroavitaminosis
- Neuroblastoma
- Neurochorioretinitis
- Neurocirculatory asthenia
- Neurocysticercosis
- Neurocytoma
- Neurodermatitis (circumscribed) (circumscripta) (local)
- Neuroencephalomyelopathy, optic
- Neuroepithelioma
- Neurofibroma
- Neurofibromatosis (multiple) (nonmalignant)
- Neurofibrosarcoma
- Neurogenic
- Neuroglioma
- Neurolabyrinthitis (of Dix and Hallpike)
- Neurolathyrism
- Neuroleprosy
- Neuroma
- Neuromyalgia
- Neuromyasthenia (epidemic) (postinfectious)
- Neuromyelitis
- Neuromyopathy
- Neuromyotonia (Isaacs)
- Neuronevus
- Neuronitis
- Neuroparalytic
- Neuropathy, neuropathic
- Neurophthisis
- Neuroretinitis
- Neuroretinopathy, hereditary optic
- Neurosarcoma
- Neurosclerosis
- Neurosis, neurotic
- Neurospongioblastosis diffusa
- Neurosyphilis (arrested) (early) (gumma) (late) (latent)
- Neurothekeoma
- Neurotic
- Neurotoxemia
- Neutroclusion
- Neutropenia, neutropenic (chronic) (genetic) (idiopathic)
- Neutrophilia, hereditary giant
- Nevocarcinoma
- Nevus
- Newborn (infant) (liveborn) (singleton)
- Newcastle conjunctivitis or disease
- Nezelof's syndrome (pure alymphocytosis)
- Niacin (amide) deficiency
- Nicolas (-Durand)-Favre disease
- Nicotine
- Nicotinic acid deficiency
- Niemann-Pick disease or syndrome
- Night
- Nightmares (REM sleep type)
- NIHSS (National Institutes of Health Stroke Scale) score
- Nipple
- Nisbet's chancre
- Nishimoto (-Takeuchi) disease
- Nitritoid crisis or reaction
- Nitrosohemoglobinemia
- Njovera
- No
- Nocardiosis, nocardiasis
- Nocturia
- Nocturnal
- Nodal rhythm
- Node (s)
- Nodule (s), nodular
- Noma (gangrenous) (hospital) (infective)
- Nomad, nomadism
- NOMID (neonatal onset multisystemic inflammatory disorder)
- Non-accidental trauma
- Nonadherence to medical treatment, specified NEC
- Nonautoimmune hemolytic anemia
- Nonclosure
- Noncompliance
- Nondescent (congenital)
- Nondevelopment
- Nonengagement
- Nonexanthematous tick fever
- Nonexpansion, lung (newborn)
- Nonfunctioning
- Non-Hodgkin lymphoma NEC
- Nonimplantation, ovum
- Noninsufflation, fallopian tube
- Non-ketotic hyperglycinemia
- Nonne-Milroy syndrome
- Nonovulation
- Non-palpable testicle (s)
- Nonpatent fallopian tube
- Nonpneumatization, lung NEC
- Nonrotation
- Nonsecretion, urine
- Nonunion
- Nonvisualization, gallbladder
- Nonvital, nonvitalized tooth
- Non-working side interference
- Noonan's syndrome
- Normocytic anemia (infectional) due to blood loss (chronic)
- Norrie's disease (congenital)
- North American blastomycosis
- Norwegian itch
- Nose, nasal
- Nosebleed
- Nose-picking
- Nosomania
- Nosophobia
- Nostalgia
- Notch of iris
- Notching nose, congenital (tip)
- Nothnagel's
- Novy's relapsing fever
- Noxious
- Nucleus pulposus
- Numbness
- Nuns' knee
- Nursemaid's elbow
- Nutcracker esophagus
- Nutmeg liver
- Nutrient element deficiency
- Nutrition deficient or insufficient
- Nutritional stunting
- Nyctalopia (night blindness)
- Nycturia
- Nymphomania
- Nystagmus
Naegeli's
Naegleriasis (with meningoencephalitis)
Naffziger's syndrome
Naga sore
See: Ulcer, skin;
Nägele's pelvis
Nail
Nanism, nanosomia
Nanophyetiasis
Nanukayami
Napkin rash
Narcolepsy
Narcosis
Narcotism
See: Dependence;
NARP (Neuropathy, Ataxia and Retinitis pigmentosa) syndrome
Narrow
Narrowing
See Also: Stenosis;
Narrowness, abnormal, eyelid
Nasal
Nasolachrymal, nasolacrimal
Nasopharyngeal
Nasopharyngitis (acute) (infective) (streptococcal) (subacute)
Nasopharynx, nasopharyngeal
Natal tooth, teeth
Nausea (without vomiting)
Neapolitan fever
See: Brucellosis;
Near drowning
Nearsightedness
See: Myopia;
Near-syncope
Nebula, cornea
See: Opacity, cornea;
Necator americanus infestation
Necatoriasis
Neck
Necrobiosis
Necrolysis, toxic epidermal
Necrophilia
Necrosis, necrotic (ischemic)
See Also: Gangrene;
Necrospermia
See: Infertility, male;
Need (for)
Neglect
Neisserian infection NEC
See: Gonococcus;
Nelaton's syndrome
Nelson's syndrome
Nematodiasis (intestinal)
Neonatal
See Also: Newborn;
Neonatorum
Neoplasia
Neoplasm, neoplastic
See Also: Table of Neoplasms;
Neovascularization
Nephralgia
Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic)
Nephroblastoma (epithelial) (mesenchymal)
Nephrocalcinosis
Nephrocystitis, pustular
Nephrolithiasis (congenital) (pelvis) (recurrent)
See Also: Calculus, kidney;
Nephroma
Nephronephritis
See: Nephrosis;
Nephronophthisis
Nephropathia epidemica
Nephropathy
See Also: Nephritis;
Nephroptosis
Nephropyosis
See: Abscess, kidney;
Nephrorrhagia
Nephrosclerosis (arteriolar) (arteriosclerotic) (chronic) (hyaline)
See Also: Hypertension, kidney;
Nephrosis, nephrotic (Epstein's) (syndrome) (congenital)
Nephrosonephritis, hemorrhagic (endemic)
Nephrostomy
Nerve
Nerves
Nervous
Nervousness
Nesidioblastoma
Nettleship's syndrome
See: Urticaria pigmentosa;
Neumann's disease or syndrome
Neuralgia, neuralgic (acute)
Neurapraxia
See: Injury, nerve;
Neurasthenia
Neurilemmoma
See Also: Neoplasm, nerve, benign;
Neurilemmosarcoma
Neurinoma
See: Neoplasm, nerve, benign;
Neurinomatosis
Neuritis (rheumatoid)
Neuroastrocytoma
Neuroavitaminosis
Neuroblastoma
Neurochorioretinitis
Neurocirculatory asthenia
Neurocysticercosis
Neurocytoma
Neurodermatitis (circumscribed) (circumscripta) (local)
Neuroencephalomyelopathy, optic
Neuroepithelioma
See Also: Neoplasm, malignant, by site;
Neurofibroma
See Also: Neoplasm, nerve, benign;
Neurofibromatosis (multiple) (nonmalignant)
Neurofibrosarcoma
Neurogenic
Neuroglioma
Neurolabyrinthitis (of Dix and Hallpike)
See: Neuronitis, vestibular;
Neurolathyrism
Neuroleprosy
Neuroma
See Also: Neoplasm, nerve, benign;
Neuromyalgia
See: Neuralgia;
Neuromyasthenia (epidemic) (postinfectious)
Neuromyelitis
Neuromyopathy
Neuromyotonia (Isaacs)
Neuronevus
Neuronitis
Neuroparalytic
Neuropathy, neuropathic
Neurophthisis
See Also: Disorder, nerve;
Neuroretinitis
Neuroretinopathy, hereditary optic
Neurosarcoma
Neurosclerosis
See: Disorder, nerve;
Neurosis, neurotic
Neurospongioblastosis diffusa
Neurosyphilis (arrested) (early) (gumma) (late) (latent) (recurrent) (relapse)
Neurothekeoma
See: Neoplasm, nerve, benign;
Neurotic
See: Neurosis;
Neurotoxemia
Neutroclusion
Neutropenia, neutropenic (chronic) (genetic) (idiopathic) (immune) (infantile) (malignant) (pernicious) (splenic)
Neutrophilia, hereditary giant
Nevocarcinoma
See: Melanoma;
Nevus
Newborn (infant) (liveborn) (singleton)
Newcastle conjunctivitis or disease
Nezelof's syndrome (pure alymphocytosis)
Niacin (amide) deficiency
Nicolas (-Durand)-Favre disease
Nicotine
See: Tobacco;
Nicotinic acid deficiency
Niemann-Pick disease or syndrome
Night
Nightmares (REM sleep type)
NIHSS (National Institutes of Health Stroke Scale) score
Nipple
Nisbet's chancre
Nishimoto (-Takeuchi) disease
Nitritoid crisis or reaction
See: Crisis, nitritoid;
Nitrosohemoglobinemia
Njovera
No
Nocardiosis, nocardiasis
Nocturia
Nocturnal
Nodal rhythm
Node (s)
See Also: Nodule;
Nodule (s), nodular
Noma (gangrenous) (hospital) (infective)
Nomad, nomadism
NOMID (neonatal onset multisystemic inflammatory disorder)
Non-accidental trauma
See: Abuse, physical;
Nonadherence to medical treatment, specified NEC
Nonautoimmune hemolytic anemia
Nonclosure
See Also: Imperfect, closure;
Noncompliance
Nondescent (congenital)
See Also: Malposition, congenital;
Nondevelopment
Nonengagement
Nonexanthematous tick fever
Nonexpansion, lung (newborn)
Nonfunctioning
Non-Hodgkin lymphoma NEC
See: Lymphoma, non-Hodgkin;
Nonimplantation, ovum
Noninsufflation, fallopian tube
Non-ketotic hyperglycinemia
Nonne-Milroy syndrome
Nonovulation
Non-palpable testicle (s)
Nonpatent fallopian tube
Nonpneumatization, lung NEC
Nonrotation
Nonsecretion, urine
Nonunion
Nonvisualization, gallbladder
Nonvital, nonvitalized tooth
Non-working side interference
Noonan's syndrome
Normocytic anemia (infectional) due to blood loss (chronic)
Norrie's disease (congenital)
North American blastomycosis
Norwegian itch
Nose, nasal
Nosebleed
Nose-picking
Nosomania
Nosophobia
Nostalgia
Notch of iris
Notching nose, congenital (tip)
Nothnagel's
Novy's relapsing fever
Noxious
Nucleus pulposus
Numbness
Nuns' knee
See: Bursitis, prepatellar;
Nursemaid's elbow
Nutcracker esophagus
Nutmeg liver
Nutrient element deficiency
Nutrition deficient or insufficient
Nutritional stunting
Nyctalopia (night blindness)
See: Blindness, night;
Nycturia
Nymphomania
Nystagmus
