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	6. DISEASES OF THE NERVOUS SYSTEM AND SENSE ORGANS (320-389)
	INFLAMMATORY DISEASES OF THE CENTRAL NERVOUS SYSTEM (320-326)
	320 Bacterial meningitis Includes: arachnoiditis bacterial leptomeningitis bacterial meningitis bacterial meningoencephalitis bacterial meningomyelitis bacterial pachymeningitis bacterial
	321 Meningitis due to other organisms Includes: arachnoiditis due to organisms other than bacteria leptomeningitis due to organisms other than bacteria meningitis due to organisms other than bacteria pachymeningitis due to organisms other than bacteria
	322 Meningitis of unspecified cause Includes: arachnoiditis with no organism specified as cause leptomeningitis with no organism specified as cause meningitis with no organism specified as cause pachymeningitis with no organism specified as cause
	323 Encephalitis, myelitis, and encephalomyelitis Includes: acute disseminated encephalomyelitis meningoencephalitis, except bacterial meningomyelitis, except bacterial myelitis: ascending transverse Excludes: acute transverse myelitis NOS (341.20) acute transverse myelitis in conditions classified elsewhere (341.21) bacterial: meningoencephalitis (320.0-320.9) meningomyelitis (320.0-320.9) idiopathic transverse myelitis (341.22)
	324 Intracranial and intraspinal abscess
eicd10	325 Phlebitis and thrombophlebitis of intracranial venous sinuses Embolism of cavernous, lateral, or other intracranial or unspecified intracranial venous sinus Endophlebitis of cavernous, lateral, or other intracranial or unspecified intracranial venous sinus Phlebitis, septic or suppurative of cavernous, lateral, or other intracranial or unspecified intracranial venous sinus Thrombophlebitis of cavernous, lateral, or other intracranial or unspecified intracranial venous sinus Thrombosis of cavernous, lateral, or other intracranial or unspecified intracranial venous sinus Excludes: that specified as: complicating pregnancy, childbirth, or the puerperium (671.5) of nonpyogenic origin (437.6)
eicd10	326 Late effects of intracranial abscess or pyogenic infection 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)