| Full description | Encounter for observation for suspected exposure to biological agents ruled out |
| Billable | No — use a more specific child code |
| Chapter | Chapter 21: Factors influencing health status and contact with health services (Z00-Z99) |
| Section | Persons encountering health services for examinations (Z00-Z13) |
| Parent code | Z03.8 — Encntr for obs for oth suspected diseases and cond ruled out |