Diagnosis Codes Index - Diseases of the nervous system

    • ICD-10 Index

      • Diseases of the nervous system (G00–G99)

        Excludes2: certain conditions originating in the perinatal period (P04-P96), certain infectious and parasitic diseases (A00-B99), complications of pregnancy, childbirth and the puerperium (O00-O9A), congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99), endocrine, nutritional and metabolic diseases (E00-E88), injury, poisoning and certain other consequences of external causes (S00-T88), neoplasms (C00-D49), symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

        • Inflammatory diseases of the central nervous system (G00-G09)

          • Bacterial meningitis, not elsewhere classified (G00)
          • Meningitis in bacterial diseases classified elsewhere (G01)
          • Meningitis in oth infec/parastc diseases classd elswhr (G02)
          • Meningitis due to other and unspecified causes (G03)
          • Encephalitis, myelitis and encephalomyelitis (G04)
          • Encphlts, myelitis & encephalomyelitis in dis classd elswhr (G05)
          • Intracranial and intraspinal abscess and granuloma (G06)
          • Intcrn & intraspinal abscs & granuloma in dis classd elswhr (G07)
          • Intracranial and intraspinal phlebitis and thrombophlebitis (G08)
          • Sequelae of inflammatory diseases of central nervous system (G09)
        • Systemic atrophies primarily affecting the central nervous system (G10-G14)

          • Huntington's disease (G10)
          • Hereditary ataxia (G11)
          • Spinal muscular atrophy and related syndromes (G12)
          • Systemic atrophies aff cnsl in diseases classd elswhr (G13)
          • Postpolio syndrome (G14)
        • Extrapyramidal and movement disorders (G20-G26)

          • Parkinson's disease (G20)
          • Secondary parkinsonism (G21)
          • Other degenerative diseases of basal ganglia (G23)
          • Dystonia (G24)
          • Other extrapyramidal and movement disorders (G25)
          • Extrapyramidal and movement disord in diseases classd elswhr (G26)
        • Other degenerative diseases of the nervous system (G30-G32)

          • Alzheimer's disease (G30)
          • Oth degenerative diseases of nervous system, NEC (G31)
          • Oth degeneratv disord of nervous sys in dis classd elswhr (G32)
        • Demyelinating diseases of the central nervous system (G35-G37)

          • Multiple sclerosis (G35)
          • Other acute disseminated demyelination (G36)
          • Other demyelinating diseases of central nervous system (G37)
        • Episodic and paroxysmal disorders (G40-G47)

          • Epilepsy and recurrent seizures (G40)
          • Migraine (G43)
          • Other headache syndromes (G44)
          • Transient cerebral ischemic attacks and related syndromes (G45)
          • Vascular syndromes of brain in cerebrovascular diseases (G46)
          • Sleep disorders (G47)
        • Nerve, nerve root and plexus disorders (G50-G59)

          • Disorders of trigeminal nerve (G50)
          • Facial nerve disorders (G51)
          • Disorders of other cranial nerves (G52)
          • Cranial nerve disorders in diseases classified elsewhere (G53)
          • Nerve root and plexus disorders (G54)
          • Nerve root and plexus compressions in diseases classd elswhr (G55)
          • Mononeuropathies of upper limb (G56)
          • Mononeuropathies of lower limb (G57)
          • Other mononeuropathies (G58)
          • Mononeuropathy in diseases classified elsewhere (G59)
        • Polyneuropathies and other disorders of the peripheral nervous system (G60-G65)

          • Hereditary and idiopathic neuropathy (G60)
          • Inflammatory polyneuropathy (G61)
          • Other and unspecified polyneuropathies (G62)
          • Polyneuropathy in diseases classified elsewhere (G63)
          • Other disorders of peripheral nervous system (G64)
          • Sequelae of inflammatory and toxic polyneuropathies (G65)
        • Diseases of myoneural junction and muscle (G70-G73)

          • Myasthenia gravis and other myoneural disorders (G70)
          • Primary disorders of muscles (G71)
          • Other and unspecified myopathies (G72)
          • Disord of myoneural junction and muscle in dis classd elswhr (G73)
        • Cerebral palsy and other paralytic syndromes (G80-G83)

          • Cerebral palsy (G80)
          • Hemiplegia and hemiparesis (G81)
          • Paraplegia (paraparesis) and quadriplegia (quadriparesis) (G82)
          • Other paralytic syndromes (G83)
        • Other disorders of the nervous system (G89-G99)

          • Pain, not elsewhere classified (G89)
          • Disorders of autonomic nervous system (G90)
          • Hydrocephalus (G91)
          • Toxic encephalopathy (G92)
          • Other disorders of brain (G93)
          • Other disorders of brain in diseases classified elsewhere (G94)
          • Other and unspecified diseases of spinal cord (G95)
          • Other disorders of central nervous system (G96)
          • Intraop and postproc comp and disorders of nervous sys, NEC (G97)
          • Other disorders of nervous system not elsewhere classified (G98)
          • Oth disorders of nervous system in diseases classd elswhr (G99)

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