LOINCActiveBoth

LOINC Code 90994-5: Iothalamate Clearance (U+S/P) [Vol/Time]

90994-5 is a LOINC code used to identify Iothalamate 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 Iothalamate 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 Iothalamate 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

  • Iothalamate renal clearance
  • Iothalamate clearance
  • Chemistry; Cl; Clear; Clearanc; Clearances; Clr; Flow; GFR; Iothal clear; 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

Iothalamate Clearance (U+S/P) [Vol/Time]Iothalamate renal clearanceIothalamate clearanceCHEMIothalamate clearance, Urine+BloodVRatPt

Frequently asked questions

Code details

Code90994-5
SystemLOINC
Display nameIothalamate Clearance (U+S/P) [Vol/Time]
DescriptionIothalamate clearance
Short nameIothalamate renal clearance
ComponentIothalamate clearance
PropertyVRat
TimingPt
System (specimen)Urine+Ser/Plas
ScaleQn
ClassCHEM
Example unitsmL/min
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.65
Last changed2.65

Consumer names

Iothalamate clearance, Urine+Blood

Part names

Iothalamate 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 90994-5 | HealthAssure