| Full description | Toxic effect of unspecified gases, fumes and vapors, accidental (unintentional), subsequent encounter |
| Billable | Yes |
| Chapter | Chapter 19: Injury, poisoning and certain other consequences of external causes (S00-T88) |
| Section | Toxic effects of substances chiefly nonmedicinal as to source (T51-T65) |
| Parent code | T59.91 — Toxic effect of unsp gases, fumes and vapors, accidental |