G00.2 Streptococcal meningitis

Name of the Condition

• Streptococcal meningitis

Summary

Streptococcal meningitis is an inflammation of the meninges, the protective membranes surrounding the brain and spinal cord, caused by streptococcal bacteria. This condition requires prompt medical attention due to its potential for rapid progression and severe complications.

Causes

Streptococcal meningitis is caused by streptococcal bacteria, which typically enter the bloodstream and cross the blood-brain barrier, leading to infection of the meninges. The bacteria can spread through respiratory droplets or direct contact with infected secretions.

Risk Factors

• Age (infants and young children are at higher risk).
• Close contact with an infected individual.
• Weakened immune system.
• Lack of vaccination against common streptococcal causes.
• Recent head injury or skull fracture.

Symptoms

• Sudden high fever.
• Severe headache.
• Stiff neck.
• Nausea and vomiting.
• Sensitivity to light (photophobia).
• Altered mental status or confusion.
• In infants, symptoms may include irritability, poor feeding, and bulging fontanelle.

Diagnosis

Diagnosis involves a lumbar puncture to analyze cerebrospinal fluid for bacterial presence, white blood cell count, and glucose levels. Blood cultures, imaging (CT or MRI), and rapid bacterial antigen tests may also be used to confirm the causative agent.

Treatment Options

Treatment typically includes intravenous antibiotics targeted at streptococcal bacteria, along with supportive care such as fluids, fever reduction, and monitoring for complications. Corticosteroids may be used to reduce inflammation in some cases.

Prognosis and Follow-Up

Prognosis depends on the timeliness of treatment and the patient’s overall health. Early intervention improves outcomes, but severe cases may result in long-term neurological damage or death. Follow-up care includes monitoring for recurrence and addressing any residual symptoms.

Complications

• Seizures.
• Hearing loss.
• Cognitive impairment.
• Hydrocephalus.
• Septic shock.

Lifestyle & Prevention

• Vaccination against streptococcal bacteria, where available.
• Good hygiene practices to reduce infection risk.
• Avoiding close contact with infected individuals.

When to Seek Professional Help

Seek immediate medical attention if symptoms such as sudden high fever, severe headache, stiff neck, or altered mental status occur, as these may indicate meningitis.

Tips for Medical Coders

Document the specific streptococcal species (e.g., Streptococcus pneumoniae, Streptococcus agalactiae) when available, as this may impact coding specificity. Ensure documentation supports the diagnosis and any associated complications for accurate code assignment.