3023-9
LOINC Code
| LOINC code | 3023-9 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| name | |||||||||
| status | DEPRECATED | ||||||||
| Replacements | alternatives to this code:
| ||||||||
Fully-Specified Name | |||||||||
| component | Thyroxine uptake | ||||||||
| property | MCnc = Mass Concentration | ||||||||
| 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 | Qn = Quantitative: The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256 | ||||||||
| method | |||||||||
Additional Names | |||||||||
| short name | Chemistry; Level; Levothyroxine; Levo-thyroxine; L-thyroxine; Mass concentration; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; T4; T-4; T4U; thyroid hormone; Thyrox; Thyroxin; T | ||||||||
Basic Attributes | |||||||||
| class | CHEM | ||||||||
| type | 1 Laboratory | ||||||||
| order vs. observation | Deprecated T4U | ||||||||
History/Usage | |||||||||
| first released | |||||||||
| last updated | 2.48 | ||||||||
| last change type | DEL - delete (deprecate) | ||||||||
Related Names | |||||||||
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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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