LOINCActiveBoth

LOINC Code 50055-3: Iohexol renal clearance (U+S/P) [Vol/Time]

50055-3 is a LOINC code used to identify Iohexol renal clearance (U+S/P) [Vol/Time] 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 Iohexol renal clearance. 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 Iohexol renal clearance. 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

  • Iohexol renal clearance in Urine and Serum or Plasma
  • Iohexol renal clearance
  • Cl; Clear; Clearanc; Clearances; Clr; DRUG/TOXICOLOGY; Drugs; Flow; Kidney; Omnipaque; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; UA; UR; Ur+SerPl; Urn; Volume rate; vRate

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

Iohexol renal clearance (U+S/P) [Vol/Time]Iohexol renal clearance in Urine and Serum or PlasmaIohexol Cl Ur+SerPl-vRateIohexol renal clearanceDRUG/TOXIohexol renal clearance, Urine+BloodVRat

Frequently asked questions

Code details

Code50055-3
SystemLOINC
Display nameIohexol renal clearance (U+S/P) [Vol/Time]
DescriptionIohexol renal clearance
Short nameIohexol Cl Ur+SerPl-vRate
ComponentIohexol renal clearance
PropertyVRat
TimingPt
System (specimen)Urine+Ser/Plas
ScaleQn
ClassDRUG/TOX
Example unitsmL/min
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.22
Last changed2.70

Consumer names

Iohexol renal clearance, Urine+Blood

Part names

Iohexol renal clearanceVRatPtUrine+Ser/PlasQnVolume RatePoint 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.

LOINC Code 50055-3 | HealthAssure