| Level | Code | Display | Definition |
| 1 | (_ActExposureLevelCode) Abstract | |
A qualitative measure of the degree of exposure to the causative agent. This includes concepts such as "low", "medium" and "high". This quantifies how the quantity that was available to be administered to the target differs from typical or background levels of the substance.
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| 2 | HIGH | high |
Description: Exposure to an agent at a relatively high level above background.
|
| 2 | LOW | low |
Description: Exposure to an agent at a relatively low level above background.
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| 2 | MEDIUM | medium |
Description: Exposure to an agent at a relatively moderate level above background.A
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