What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 105009-5: Chloride.reabsorbed by renal tubules/Chloride.total filtered (U+S/P) [Mass fraction]

Name: LOINC Code 105009-5: Chloride.reabsorbed by renal tubules/Chloride.total filtered (U+S/P) [Mass fraction]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:19.132Z

105009-5 is a LOINC code used to identify Chloride.reabsorbed by renal tubules/Chloride.total filtered (U+S/P) [Mass fraction] in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Chloride.reabsorbed by renal tubules/Chloride.total filtered. It is commonly used with the system or sample type Urine+Ser/Plas.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Chloride.reabsorbed by renal tubules/Chloride.total filtered. It is commonly used with the system or sample type Urine+Ser/Plas.

When is it used?

Used in lab systems, EHRs, and clinical data exchange.
May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
Status: ACTIVE
Order vs observation: Both

What it does not mean

The code identifies the observation or test, not the actual result.

Key facts

Chloride.reabsorbed by renal tubules/Chloride.total filtered in Urine and Serum or Plasma
Chloride.reabsorbed by renal tubules/Chloride.total filtered
Chemistry; Cl; Cl-; Cl reab/Cl. tot filt; Cl.reab ren tub; Cl.tot fil; Kidney; Mass fraction; Percent; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Tot; Totl; UA; UR; Ur+SerPl; Urn

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

Chloride.reabsorbed by renal tubules/Chloride.total filtered (U+S/P) [Mass fraction]Chloride.reabsorbed by renal tubules/Chloride.total filtered in Urine and Serum or PlasmaCl.reab ren tub/Cl.tot fil MFr Ur+SerPlChloride.reabsorbed by renal tubules/Chloride.total filteredCHEMChloride.reabsorbed by renal tubules/Chloride.total filtered, Urine+BloodMFr

Frequently asked questions

Code details

Code105009-5

SystemLOINC

Display nameChloride.reabsorbed by renal tubules/Chloride.total filtered (U+S/P) [Mass fraction]

DescriptionChloride.reabsorbed by renal tubules/Chloride.total filtered

Short nameCl.reab ren tub/Cl.tot fil MFr Ur+SerPl

ComponentChloride.reabsorbed by renal tubules/Chloride.total filtered

PropertyMFr

TimingPt

System (specimen)Urine+Ser/Plas

ScaleQn

ClassCHEM

Example units%

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.78

Last changed2.78

Consumer names

Chloride.reabsorbed by renal tubules/Chloride.total filtered, Urine+Blood

Part names

Chloride.reabsorbed by renal tubules/Chloride.total filteredMFrPtUrine+Ser/PlasQnMass fractionPoint in time (spot)Urine and Serum or Plasma

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.