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.

LOINCActiveObservation

LOINC Code 103542-7: Tubular reabsorption of phosphorus/Glomerular filtration rate (U+S/P) [Mass/Vol]

Name: LOINC Code 103542-7: Tubular reabsorption of phosphorus/Glomerular filtration rate (U+S/P) [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:17.904Z

103542-7 is a LOINC code used to identify Tubular reabsorption of phosphorus/Glomerular filtration rate (U+S/P) [Mass/Vol] 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 Tubular reabsorption of phosphorus/Glomerular filtration rate. 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 Tubular reabsorption of phosphorus/Glomerular filtration rate. 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: Observation

What it does not mean

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

Key facts

Tubular reabsorption of phosphorus/Glomerular filtration rate [Mass/volume] in Urine and Serum or Plasma
Tubular reabsorption of phosphorus/Glomerular filtration rate
Chemistry; GFR; Glom; Level; Mass concentration; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; TmP; TRP/GFR; 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

Tubular reabsorption of phosphorus/Glomerular filtration rate (U+S/P) [Mass/Vol]Tubular reabsorption of phosphorus/Glomerular filtration rate [Mass/volume] in Urine and Serum or PlasmaTmP/GFR Ur+SerPl-mCncTubular reabsorption of phosphorus/Glomerular filtration rateCHEMTubular reabsorption of phosphorus/Glomerular filtration rate, Urine+BloodMCnc

Frequently asked questions

Code details

Code103542-7

SystemLOINC

Display nameTubular reabsorption of phosphorus/Glomerular filtration rate (U+S/P) [Mass/Vol]

DescriptionTubular reabsorption of phosphorus/Glomerular filtration rate

Short nameTmP/GFR Ur+SerPl-mCnc

ComponentTubular reabsorption of phosphorus/Glomerular filtration rate

PropertyMCnc

TimingPt

System (specimen)Urine+Ser/Plas

ScaleQn

ClassCHEM

Example unitsmg/dl

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.75

Last changed2.75

Consumer names

Tubular reabsorption of phosphorus/Glomerular filtration rate, Urine+Blood

Part names

Tubular reabsorption of phosphorus/Glomerular filtration rateMCncPtUrine+Ser/PlasQnMass ConcentrationPoint 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.