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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 > Meningitis Due To Other Organisms 321.* > 2007 ICD-9-CM Diagnosis 321.4 Meningitis in sarcoidosis  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 Therefore, this code may be out of date.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 321.4 can be accessed here. 321.4 is a specific code that can be used to specify a diagnosis 321.4 contains 1 index entry View the ICD-9-CM Volume 1 321.* hierarchy Code first underlying disease (135) Index entries containing 321.4: Meningitis (basal) (basic) (basilar) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetica) (toxic) 322.9 due to sarcoidosis 135 [321.4]