Lab
NEG medical abbreviation
NEG means "negative".
Each meaning matched at least two public references (2 in all for NEG), checked October 23, 2026. The table lists them.
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What NEG means
| Meaning | Latin origin | Where used | Checked against |
|---|---|---|---|
| negative | None | Lab orders, Charting |
Also written: neg.
Example
Sample lab result: "neg."
A made-up line that shows the abbreviation in place. It is not about any patient and is not an instruction.
Related abbreviations
Elsewhere on Rivvi
Questions
What does NEG mean in medical terms?
NEG means "negative".
Where is NEG used?
NEG shows up in lab orders and charting. Its category here is lab.
Is NEG on the Joint Commission Do Not Use list?
No. NEG is not on the Joint Commission Do Not Use list or the ISMP error-prone list as checked on October 23, 2026.