31993-9
LOINC Code
| LOINC code | 31993-9 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| name | |||||||||||||
| status | ACTIVE | ||||||||||||
Fully-Specified Name | |||||||||||||
| component | Alpha-1-Fetoprotein | ||||||||||||
| property | PrThr = Present or threshold: The Property PrThr stands for “Presence or Threshold”, meaning either a) the actual presence or absence of an analyte, or b) that the amount of analyte detected is over some predetermined threshold. | ||||||||||||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||||||||||||
| system | Ser/Plas Ser = Serum Plas = Plasma | ||||||||||||
| scale | Ord = Ordinal: Ordered categorical responses, e.g., 1+, 2+, 3+; positive, negative; reactive, indeterminate, nonreactive. | ||||||||||||
| method | |||||||||||||
Additional Names | |||||||||||||
| short name | A1; AFP; Alfa; Alpha fetoprotein; Alphafetoprotein; Chemistry; Feto; i; Ordinal; Pl; Plasma; Plsm; Point in time; PR; QL; Qual; Qualitative; Random; Screen; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Tumor marker | ||||||||||||
Basic Attributes | |||||||||||||
| class | CHEM | ||||||||||||
| type | 1 Laboratory | ||||||||||||
| order vs. observation | AFP SerPl Ql | ||||||||||||
Member of these Panels | |||||||||||||
| |||||||||||||
History/Usage | |||||||||||||
| first released | |||||||||||||
| last updated | 2.73 | ||||||||||||
| last change type | MIN - change to field other than name | ||||||||||||
Related Names | |||||||||||||
| |||||||||||||
| hierarchy paths | LOINC Home {component} LP432695-7 Laboratory LP29693-6 Chemistry and Chemistry - challenge LP343631-0 Chemistry - non-challenge LP7786-9 Tumor markers LP31412-7 Liver cancer antibodies and AFP panel LP268298-9 Alpha-1-Fetoprotein LP14331-0 Alpha-1-Fetoprotein | Serum or Plasma | Chemistry - non-challenge LP384631-0 LOINC Home {component} LP432695-7 Laboratory LP29693-6 Chemistry and Chemistry - challenge LP343631-0 Chemistry - non-challenge LP7786-9 General terms LP31418-4 Trisomy 21 risk LP36654-9 Alpha-1-Fetoprotein LP14331-0 Alpha-1-Fetoprotein | Serum or Plasma | Chemistry - non-challenge LP384631-0 | ||||||||||||
Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.
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