| Abbreviation | Definition |
|---|---|
| IMT | intima media thickness |
| INNS | Interim NHS Numbering System |
| IOG | improving outcomes guidance |
| IP | immune precipitate |
| IP | immunoperoxidase |
| IP | immunophenotype |
| IP | incontinentia pigmenti |
| IP | incubation period |
| IP | infection prevention |
| IP | inferoposterior |
| IP | inflammatory pseudotumour |
| IP | inorganic phosphate |
| IP | inositol phosphate |
| IP | inpatient |
| IP | interpeduncular nucleus |
| IP | interstitial pneumonia |
| IP | interstitial pressure |
| IP | inverted papilloma |
| IP | ionisation potential |
| IP | isoelectric point |