20646-6
LOINC Code
| LOINC code | 20646-6 | ||||
|---|---|---|---|---|---|
| name | |||||
| description | Genetic metabolic specialist (from Canada) point out that plasma may be the traditional sample of choice, but they see no clinically significant difference between plasma and serum amino acids. homocystine is special; will be PLAS only. | ||||
| status | ACTIVE | ||||
Fully-Specified Name | |||||
| component | Homocystine | ||||
| property | SCnc = Substance 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 | (Hcys)2; Cardio; Cardiology; Chemistry; Heart Disease; Homocyst(e)ine; Homocystin; Level; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Substance concentration | ||||
Basic Attributes | |||||
| class | CHEM | ||||
| type | 1 Laboratory | ||||
| order vs. observation | (Hcys)2 SerPl-s | ||||
| example UCUM units | umol/L The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org) | ||||
Member of these Groups | |||||
| |||||
Member of these Panels | |||||
| |||||
History/Usage | |||||
| first released | |||||
| last updated | 2.73 | ||||
| last change type | MIN - change to field other than name | ||||
| change reason | umol/L | ||||
Related Names | |||||
| |||||
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.
Thank you for choosing Find-A-Code, please Sign In to remove ads.

Quick, Current, Complete - www.findacode.com