| Abbreviation | Definition |
|---|---|
| PHC | pituitary hypothalamus complex |
| PHC | primary healthcare |
| PHC | public health center |
| PHCDS | Public Health Common Data Set |
| PHCN | Public Health Commissioning Network |
| PHCSG | Primary Health Care Specialist Group |
| PHCT | primary health care team |
| PHD | phage host defective |
| PHD | Philosophiæ Doctor (PhD) |
| PHD | pleckstrin homology domain |
| PHD | poor helpless drunk |
| PHD | potentially harmful drug |
| PHD | prolyl hydroxylase domain |
| PHD | pulmonary heart disease |
| PHI | passive haemagglutination inhibition |
| PHI | phagocytosis index |
| PHI | phosphate isomerase |
| PHI | primary HIV infection |
| PHI | primary hyperoxaluria |
| PHI | Professionalising Health Informatics |