| A69 | Other spirochetal infections | NON-BILLABLE CODE |
| A69.0 | Necrotizing ulcerative stomatitis | BILLABLE CODE |
| A69.1 | Other Vincent's infections | BILLABLE CODE |
| A69.2 | Lyme disease | NON-BILLABLE CODE |
| A69.21 | Meningitis due to Lyme disease | BILLABLE CODE |
| A69.22 | Other neurologic disorders in Lyme disease | BILLABLE CODE |
| A69.23 | Arthritis due to Lyme disease | BILLABLE CODE |
| A69.29 | Other conditions associated with Lyme disease | BILLABLE CODE |
| A69.8 | Other specified spirochetal infections | BILLABLE CODE |
| A69.9 | Spirochetal infection, unspecified | BILLABLE CODE |
