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 > ICD-9-CM Diagnosis 321 Meningitis due to other organisms 321 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 321.0 Cryptococcal meningitis Meningeal inflammation produced by CRYPTOCOCCUS NEOFORMANS, an encapsulated yeast that tends to infect individuals with ACQUIRED IMMUNODEFICIENCY SYNDROME and other immunocompromised states. The organism enters the body through the respiratory tract, but symptomatic infections are usually limited to the lungs and nervous system. The organism may also produce parenchymal brain lesions (torulomas). Clinically, the course is subacute and may feature HEADACHE; NAUSEA; PHOTOPHOBIA; focal neurologic deficits; SEIZURES; cranial neuropathies; and HYDROCEPHALUS. 321.0 is a specific code that can be used to specify a diagnosis 321.0 contains 2 index entries ICD-9-CM Diagnosis 321.1 Meningitis in other fungal diseases 321.1 is a specific code that can be used to specify a diagnosis 321.1 contains 5 index entries ICD-9-CM Diagnosis 321.2 Meningitis due to viruses not elsewhere classified 321.2 is a specific code that can be used to specify a diagnosis 321.2 contains 5 index entries ICD-9-CM Diagnosis 321.3 Meningitis due to trypanosomiasis 321.3 is a specific code that can be used to specify a diagnosis 321.3 contains 2 index entries ICD-9-CM Diagnosis 321.4 Meningitis in sarcoidosis 321.4 is a specific code that can be used to specify a diagnosis 321.4 contains 1 index entry ICD-9-CM Diagnosis 321.8 Meningitis due to other nonbacterial organisms classified elsewhere 321.8 is a specific code that can be used to specify a diagnosis 321.8 contains 4 index entries