All individuals in LOINC
| Label | Id | Description |
|---|---|---|
| 4-2-2 | LA28061-2 | |
| 4-5 days | LA13945-3 | |
| 4-5 hours | LA32152-3 | |
| 4-5 times per day | LA13856-2 | |
| 4-6 times | LA28444-0 | |
| 4-7 days | LA14791-0 | |
| 4-8 hours/most of day | LA30317-4 | |
| 4-Biphenylamine | MTHU027459 | |
| 4-Biphenylamine | LP34758-0 | |
| 4-Biphenylamine | Air | Drug toxicology | LP391926-5 | |
| 4-Biphenylamine:MCnc:Pt:Air:Qn | 38632-6 | |
| 4-Deoxythreonate | LP201869-7 | |
| 4-Deoxythreonate | MTHU051077 | |
| 4-Deoxythreonate | Serum or Plasma | Chemistry - non-challenge | LP386181-4 | |
| 4-Deoxythreonate/Creatinine | MTHU051083 | |
| 4-Deoxythreonate/Creatinine | LP284796-2 | |
| 4-Deoxythreonate/Creatinine | Urine | Chemistry - non-challenge | LP386182-2 | |
| 4-Deoxythreonate/Creatinine:SRto:Pt:Urine:Qn | 79527-8 | |
| 4-Deoxythreonate:SCnc:Pt:Ser/Plas:Qn | 79520-3 | |
| 4-Digit Extent of Disease (1983-87) | LA9124-4 |