| R09.0 | Asphyxia and hypoxemia | NON-BILLABLE CODE |
| R09.01 | Asphyxia | BILLABLE CODE |
| R09.02 | Hypoxemia | BILLABLE CODE |
| R09.1 | Pleurisy | BILLABLE CODE |
| R09.2 | Respiratory arrest | BILLABLE CODE |
| R09.3 | Abnormal sputum | BILLABLE CODE |
| R09.8 | Other specified symptoms and signs involving the circulatory and respiratory systems | NON-BILLABLE CODE |
| R09.81 | Nasal congestion | BILLABLE CODE |
| R09.82 | Postnasal drip | BILLABLE CODE |
| R09.89 | Other specified symptoms and signs involving the circulatory and respiratory systems | BILLABLE CODE |
| R09.A | Foreign body sensation of the circulatory and respiratory system | NON-BILLABLE CODE |
| R09.A0 | Foreign body sensation, unspecified | BILLABLE CODE |
| R09.A1 | Foreign body sensation, nose | BILLABLE CODE |
| R09.A2 | Foreign body sensation, throat | BILLABLE CODE |
| R09.A9 | Foreign body sensation, other site | BILLABLE CODE |
