A39 - Meningococcal infection
A39.8 - Other meningococcal infections
A39.81 - Meningococcal encephalitis
A39.82 - Meningococcal retrobulbar neuritis
A39.83 - Meningococcal arthritis
A39.84 - Postmeningococcal arthritis
A39.89 - Other meningococcal infections