| A39 | Meningococcal infection | NON-BILLABLE CODE |
| A39.0 | Meningococcal meningitis | BILLABLE CODE |
| A39.1 | Waterhouse-Friderichsen syndrome | BILLABLE CODE |
| A39.2 | Acute meningococcemia | BILLABLE CODE |
| A39.3 | Chronic meningococcemia | BILLABLE CODE |
| A39.4 | Meningococcemia, unspecified | BILLABLE CODE |
| A39.5 | Meningococcal heart disease | NON-BILLABLE CODE |
| A39.50 | Meningococcal carditis, unspecified | BILLABLE CODE |
| A39.51 | Meningococcal endocarditis | BILLABLE CODE |
| A39.52 | Meningococcal myocarditis | BILLABLE CODE |
| A39.53 | Meningococcal pericarditis | BILLABLE CODE |
| A39.8 | Other meningococcal infections | NON-BILLABLE CODE |
| A39.81 | Meningococcal encephalitis | BILLABLE CODE |
| A39.83 | Meningococcal arthritis | BILLABLE CODE |
| A39.84 | Postmeningococcal arthritis | BILLABLE CODE |
| A39.89 | Other meningococcal infections | BILLABLE CODE |
| A39.9 | Meningococcal infection, unspecified | BILLABLE CODE |
