| F40.21 | Animal type phobia | NON-BILLABLE CODE |
| F40.210 | Arachnophobia | BILLABLE CODE |
| F40.218 | Other animal type phobia | BILLABLE CODE |
| F40.22 | Natural environment type phobia | NON-BILLABLE CODE |
| F40.220 | Fear of thunderstorms | BILLABLE CODE |
| F40.228 | Other natural environment type phobia | BILLABLE CODE |
| F40.23 | Blood, injection, injury type phobia | NON-BILLABLE CODE |
| F40.230 | Fear of blood | BILLABLE CODE |
| F40.231 | Fear of injections and transfusions | BILLABLE CODE |
| F40.232 | Fear of other medical care | BILLABLE CODE |
| F40.233 | Fear of injury | BILLABLE CODE |
| F40.24 | Situational type phobia | NON-BILLABLE CODE |
| F40.240 | Claustrophobia | BILLABLE CODE |
| F40.241 | Acrophobia | BILLABLE CODE |
| F40.242 | Fear of bridges | BILLABLE CODE |
| F40.243 | Fear of flying | BILLABLE CODE |
| F40.248 | Other situational type phobia | BILLABLE CODE |
| F40.29 | Other specified phobia | NON-BILLABLE CODE |
| F40.290 | Androphobia | BILLABLE CODE |
| F40.291 | Gynephobia | BILLABLE CODE |
| F40.298 | Other specified phobia | BILLABLE CODE |
