2008 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 320 Bacterial meningitis Bacterial infections of the leptomeninges and subarachnoid space, frequently involving the cerebral cortex, cranial nerves, cerebral blood vessels, spinal cord, and nerve roots. The type of causative organism varies with age and clinical status (e.g., post-operative, immunodeficient, or post-traumatic states). Clinical manifestations include the acute onset of fever, stiff neck, altered mentation, seizures, and focal neurologic deficits. Death may occur within 24 hours of disease onset. Pathologic features include a purulent exudate in the subarachnoid space, and diffuse inflammation of neural and vascular structures. (From Joynt, Clinical Neurology, 1994, Ch24, pp1-5) 320 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 320.0 Hemophilus meningitis BACTERIAL INFECTIONS of the nervous system caused by HAEMOPHILUS organisms, and marked by prominent inflammation of the meninges. HAEMOPHILUS INFLUENZAE TYPE B is the most common causative organism. The condition primarily affects children under 6 years of age but may occur in adults. Clinical manifestations include fever; nuchal rigidity; PHOTOPHOBIA; SEIZURES; HEARING LOSS; SENSORINEURONAL; COMA; and cerebrovascular thrombosis. The organism tends to enter the central nervous system following infections of adjacent structures, including the middle ear (see also OTITIS MEDIA), sinuses, and pharynx. (From Menkes, Textbook of Child Neurology, 5th ed, pp396-7) 320.0 is a specific code that can be used to specify a diagnosis 320.0 contains 11 index entries ICD-9-CM Diagnosis 320.1 Pneumococcal meningitis An acute purulent infection of the meninges and subarachnoid space caused by Streptococcus pneumoniae, most prevalent in children and adults over the age of 60. This illness may be associated with OTITIS MEDIA; MASTOIDITIS; SINUSITIS; RESPIRATORY TRACT INFECTIONS; sickle cell disease (ANEMIA, SICKLE CELL); skull fractures; and other disorders. Clinical manifestations include FEVER; HEADACHE; neck stiffness; and somnolence followed by SEIZURES; focal neurologic deficits (notably DEAFNESS); and COMA. (From Miller et al., Merritt's Textbook of Neurology, 9th ed, p111) 320.1 is a specific code that can be used to specify a diagnosis 320.1 contains 5 index entries ICD-9-CM Diagnosis 320.2 Streptococcal meningitis 320.2 is a specific code that can be used to specify a diagnosis 320.2 contains 3 index entries ICD-9-CM Diagnosis 320.3 Staphylococcal meningitis 320.3 is a specific code that can be used to specify a diagnosis 320.3 contains 2 index entries ICD-9-CM Diagnosis 320.7 Meningitis in other bacterial diseases classified elsewhere 320.7 is a specific code that can be used to specify a diagnosis 320.7 contains 15 index entries ICD-9-CM Diagnosis 320.8 Meningitis due to other specified bacteria 320.8 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 320.81 Anaerobic meningitis 320.81 is a specific code that can be used to specify a diagnosis 320.81 contains 13 index entries ICD-9-CM Diagnosis 320.82 Meningitis due to gram-negative bacteria not elsewhere classified A form of gram-negative meningitis that tends to occur in neonates, in association with anatomical abnormalities (which feature communication between the meninges and cutaneous structures) or as OPPORTUNISTIC INFECTIONS in association with IMMUNOLOGIC DEFICIENCY SYNDROMES. In premature neonates the clinical presentation may be limited to ANOREXIA; VOMITING; lethargy; or respiratory distress. Full-term infants may have as additional features FEVER; SEIZURES; and bulging of the anterior fontanelle. (From Menkes, Textbook of Child Neurology, 5th ed, pp398-400) 320.82 is a specific code that can be used to specify a diagnosis 320.82 contains 15 index entries ICD-9-CM Diagnosis 320.89 Meningitis due to other specified bacteria 320.89 is a specific code that can be used to specify a diagnosis 320.89 contains 7 index entries ICD-9-CM Diagnosis 320.9 Meningitis due to unspecified bacterium Bacterial infections of the leptomeninges and subarachnoid space, frequently involving the cerebral cortex, cranial nerves, cerebral blood vessels, spinal cord, and nerve roots. The type of causative organism varies with age and clinical status (e.g., post-operative, immunodeficient, or post-traumatic states). Clinical manifestations include the acute onset of fever, stiff neck, altered mentation, seizures, and focal neurologic deficits. Death may occur within 24 hours of disease onset. Pathologic features include a purulent exudate in the subarachnoid space, and diffuse inflammation of neural and vascular structures. (From Joynt, Clinical Neurology, 1994, Ch24, pp1-5) 320.9 is a specific code that can be used to specify a diagnosis 320.9 contains 11 index entries