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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Inflammatory Diseases Of The Central Nervous System 320-327 > 2007 ICD-9-CM Diagnosis 326 Late effects of intracranial abscess or pyogenic infection  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 326 can be accessed here. 326 is a specific code that can be used to specify a diagnosis 326 contains 53 index entries Note : This category is to be used to indicate conditions whose primary classification is to 320-325 [excluding 320.7, 321.0-321.8, 323.01-323.42, 323.61-323.72] as the cause of late effects, themselves classifiable elsewhere. The "late effects" include conditions specified as such, or as sequelae, which may occur at any time after the resolution of the causal condition. Use additional code to identify condition, as: hydrocephalus (331.4) paralysis (342.0-342.9, 344.0-344.9) Index entries containing 326: Abscess (acute) (chronic) (infectional) (lymphangitic) (metastatic) (multiple) (pyogenic) (septic) (with lymphangitis) (see also Cellulitis) 682.9 brain (any part) 324.0 late effect - see category 326 cerebellum, cerebellar 324.0 late effect - see category 326 cerebral (embolic) 324.0 late effect - see category 326 epidural 324.9 late effect - see category 326 extradural 324.9 late effect - see category 326 intracranial 324.0 late effect - see category 326 intraspinal 324.1 late effect - see category 326 sinus (accessory) (chronic) (nasal) (see also Sinusitis) 473.9 intracranial venous (any) 324.0 late effect - see category 326 subarachnoid 324.9 late effect - see category 326 subdural 324.9 late effect - see category 326 temporosphenoidal 324.0 late effect - see category 326 Disease, diseased - see also Syndrome brain 348.9 inflammatory - see also Encephalitis late effect - see category 326 Embolism 444.9 intracranial (see also Embolism, brain) 434.1 venous sinus (any) 325 late effect - see category 326 spinal cord (nonpyogenic) 336.1 pyogenic origin 324.1 late effect - see category 326 Fever 780.6 brain 323.9 late effect - see category 326 cerebral 323.9 late effect - see category 326 Hematomyelitis 323.9 late effect - see category 326 Hemophilus influenzae NEC 041.5 arachnoiditis (basic) (brain) (spinal) 320.0 late effect - see category 326 cerebral ventriculitis 320.0 late effect - see category 326 cerebrospinal inflammation 320.0 late effect - see category 326 leptomeningitis 320.0 late effect - see category 326 meningitis (cerebral) (cerebrospinal) (spinal) 320.0 late effect - see category 326 meningomyelitis 320.0 late effect - see category 326 pachymeningitis (adhesive) (fibrous) (hemorrhagic) (hypertrophic) (spinal) 320.0 late effect - see category 326 Infection, infected, infective (opportunistic) 136.9 brain (see also Encephalitis) 323.9 late effect - see category 326 septic 324.0 late effect - see category 326 cerebrospinal (see also Meningitis) 322.9 late effect - see category 326 spinal cord NEC (see also Encephalitis) 323.9 abscess 324.1 late effect - see category 326 late effect - see category 326 Inflammation, inflamed, inflammatory (with exudation) brain (see also Encephalitis) 323.9 late effect - see category 326 cerebral (see also Encephalitis) 323.9 late effect - see category 326 cerebrospinal (see also Meningitis) 322.9 late effect - see category 326 spinal cord (see also Encephalitis) 323.9 late effect - see category 326 Late - see also condition effect(s) (of) - see also condition abscess intracranial or intraspinal (conditions classifiable to 324) - see category 326 encephalitis or encephalomyelitis (conditions classifiable to 323) - see category 326 in infectious diseases 139.8 viral (conditions classifiable to 049.8, 049.9, 062-064) 139.0 infection pyogenic, intracranial - see category 326 meningitis bacterial (conditions classifiable to 320) - see category 326 unspecified cause (conditions classifiable to 322) - see category 326 myelitis (see also Late, effect(s) (of), encephalitis) - see category 326 phlebitis or thrombophlebitis of intracranial venous sinuses (conditions classifiable to 325) - see category 326 Leptomeningitis (chronic) (circumscribed) (hemorrhagic) (nonsuppurative) (see also Meningitis) 322.9 late effect - see category 326 Meningoencephalitis (see also Encephalitis) 323.9 late effect - see category 326 Meningoencephalomyelitis (see also Meningoencephalitis) 323.9 late effect - see category 326 Meningomyelitis (see also Meningoencephalitis) 323.9 late effect - see category 326 Mesencephalitis (see also Encephalitis) 323.9 late effect - see category 326 Myelitis (ascending) (cerebellar) (childhood) (chronic) (descending) (diffuse) (disseminated) (pressure) (progressive) (spinal cord) (subacute) (see also Encephalitis) 323.9 late effect - see category 326 Parencephalitis (see also Encephalitis) 323.9 late effect - see category 326 Phlebitis (infective) (pyemic) (septic) (suppurative) 451.9 intracranial sinus (any) (venous) 325 late effect - see category 326 Suppuration, suppurative - see also condition brain 324.0 late effect 326 Syringomyelitis 323.9 late effect - see category 326 Thrombophlebitis 451.9 cerebral (sinus) (vein) 325 late effect - see category 326 intracranial venous sinus (any) 325 late effect - see category 326 Thrombosis, thrombotic (marantic) (multiple) (progressive) (septic) (vein) (vessel) 453.9 spinal cord 336.1 pyogenic origin 324.1 late effect - see category 326