LOINC
Version 2.68

1971-1Bilirubin.indirect [Mass/volume] in Serum or PlasmaActive

Term Description

Method can be WET CHEMISTRY or DRY SLIDE (Bu)
Source: Regenstrief LOINC

Part Description

LP15449-9   Bilirubin.non-glucuronidated
Bilirubin is an orange-yellow pigment produced by the normal breakdown of heme, a component of the hemoglobin found in red blood cells. It is processed by the liver and excreted in bile. Conditions that cause red blood cell breakdown or interfere with liver or bile processing can cause elevated levels of bilirubin. Bilirubin exists in many forms. Non-glucuronidated bilirubin (also called unconjugated or indirect) is the breakdown product of heme and is not water-soluble. Hemolytic anemias, which cause increased red blood cell breakdown, are one cause of elevated non-glucuronidated bilirubin. Glucuronidated bilirubin (also called conjugated) is a water-soluble form of bilirubin that is made in the liver by the addition of sugar molecules to non-glucuronidated bilirubin. Conditions that affect liver function (such as hepatitis, cirrhosis and liver tumors) or physically block the bile ducts (such as gallstones) can cause elevated levels of glucuronidated bilirubin. A third form of bilirubin is that which is bound to albumin, and it is also known as delta bilirubin because it was originally identified based on the unexpected difference between the total bilirubin level and the level of glucuronidated plus non-glucuronidated bilirubin in some patient samples. Prior to the discovery of albumin-bound bilirubin, the term "direct" bilirubin was used as a synonym for glucuronidated bilirubin, but direct bilirubin is actually glucuronidated plus delta bilirubin (bilirubin covalently bound to albumin). Source: Regenstrief LOINC

Fully-Specified Name

Component
Bilirubin.non-glucuronidated
Property
MCnc
Time
Pt
System
Ser/Plas
Scale
Qn
Method

Additional Names

Short Name
Bilirub Indirect SerPl-mCnc
Display Name
Bilirubin.indirect [Mass/Vol]

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 1.0
Last Updated
Version 2.66
Order vs. Observation
Both
Common US Lab Results Rank
125
CDISC Lab Test
Yes

Reference Information

Type Source Reference
Webcontent Lab Tests Online®Copyright Copyright © 2001-2019 American Association for Clinical Chemistry Bilirubin

Member of these Panels

LOINC Long Common Name
50189-0 Neonatal bilirubin panel [Mass/volume] - Serum or Plasma

Member of these Groups

LG3235-1 Bilirubin.non-glucuronidated|MCnc|Pt|ANYBldSerPl
LG43430-4 Bilirubin.non-glucuronidated|Pt|Ser/Plas

Language Variants Get Info

zh-CNChinese (CHINA)
胆红素.非葡糖醛酸化:质量浓度:时间点:血清/血浆:定量型:
nl-NLDutch (NETHERLANDS)
bilirubine.niet-geglucuronideerd:massa/volume:moment:serum of plasma:kwantitatief:
et-EEEstonian (ESTONIA)
Bilirubiin.mitteglükuronideeritud:MCnc:Pt:S/P:Qn:
fr-BEFrench (BELGIUM)
Bilirubine.non glucuroconjuguée:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-CAFrench (CANADA)
Bilirubine.non glucuroconjuguée:Concentration de masse:Temps ponctuel:Sérum/Plasma:Quantitatif:
fr-FRFrench (FRANCE)
Bilirubine libre:Masse/Volume:Ponctuel:Sérum/Plasma:Numérique:
de-DEGerman (GERMANY)
Bilirubin.nicht-glucuronidiert:MKnz:Pkt:Ser/Plas:Qn:
it-ITItalian (ITALY)
Bilirubina.non-glucuronidata:MCnc:Pt:Siero/Plasma:Qn:
ko-KRKorean (KOREA, REPUBLIC OF)
비글루쿠론산화 빌리루빈:질량농도:검사시점:혈청/혈장:정량:
pt-BRPortuguese (BRAZIL)
Bilirrubina.não glicuronizada:MCnc:Pt:Sor/Plas:Qn:
ru-RURussian (RUSSIAN FEDERATION)
Билирубин.не связанный с глюкуроновой кислотой:МассКонц:ТчкВрм:Сыв/Плаз:Колич:
es-ARSpanish (ARGENTINA)
bilirrubina.no glucuronizada:concentración de masa:punto en el tiempo:suero/plasma:cuantitativo:
es-ESSpanish (SPAIN)
Bilirrubina no conjugada:Concentración de masa:Punto temporal:Suero o Plasma:Qn:
tr-TRTurkish (TURKEY)
Bilirubin.glukuronize değil:KütlKons:Zmlı:Ser/Plaz:Kant:

Example Units

Unit Source
mg/dL Example UCUM Units
mg/dL REGENSTRIEF

Units and Range

Range
mg/dL:[0.2,0.7];
Unit Type

LOINC FHIR® API Example - CodeSystem Request Get Info

https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=1971-1