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 322.2 Chronic meningitis View the most recent version of ICD-9-CM 322.2 322.2 is a specific code that can be used to specify a diagnosis 322.2 contains 1 index entry View the ICD-9-CM Volume 1 322.* hierarchy  Index entries containing 322.2: Meningitis (basal) (basic) (basilar) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetica) (toxic) 322.9 chronic NEC 322.2