2006 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 > Meningitis Of Unspecified Cause 322.* > 2006 ICD-9-CM Diagnosis 322.0 Nonpyogenic meningitis View the most recent version of ICD-9-CM 322.0 322.0 is a specific code that can be used to specify a diagnosis 322.0 contains 4 index entries View the ICD-9-CM Volume 1 322.* hierarchy Alternate Terminology Meningitis with clear cerebrospinal fluid  Index entries containing 322.0: Meningitis (basal) (basic) (basilar) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetica) (toxic) 322.9 aseptic (acute) NEC 047.9 noninfective 322.0 clear cerebrospinal fluid NEC 322.0 nonpyogenic NEC 322.0 serosa circumscripta NEC 322.0