LOINCActiveBoth

LOINC Code 87499-0: 3-Methoxytyramine.free (U) [Molar ratio]

87499-0 is a LOINC code used to identify 3-Methoxytyramine.free (U) [Molar ratio] 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 3-Methoxytyramine.free. It is commonly used with the system or sample type Urine.

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 3-Methoxytyramine.free. It is commonly used with the system or sample type Urine.

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

3-Methoxytyramine.free [Molar ratio] in Urine
3-Methoxytyramine.free
Part description for 3-Methoxytyramine3-methoxytyramine is a catecholamines derivative found in the cytoplasm of cells in most human tissues, including the brain. Elevated levels of 3-methoxytyramine in urine and or plasma correlate with brain tumors and mental disorders. [Pubchem:1669] [PMID:22008135]
3Me-tyramine; Chemistry; Dopamine metabolite; FR; Free 3-MT; III; Non-protein bound; Point in time; QNT; Quan; Quant; Quantitative; Random; Scrto; Substance concentration ratio; Substance ratio; UA; UR; 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

3-Methoxytyramine.free (U) [Molar ratio]3-Methoxytyramine.free [Molar ratio] in UrineFree 3-MT Ur-sRto3-Methoxytyramine.freeCHEMFree 3-Methoxytyramine, UrineSRto

Frequently asked questions

Code details

Code87499-0
SystemLOINC
Display name3-Methoxytyramine.free (U) [Molar ratio]
Description3-Methoxytyramine.free
Short nameFree 3-MT Ur-sRto
Component3-Methoxytyramine.free
PropertySRto
TimingPt
System (specimen)Urine
ScaleQn
ClassCHEM
Example unitsumol/mmol creatinine
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.63
Last changed2.63

Consumer names

Free 3-Methoxytyramine, Urine

Part names

3-Methoxytyramine.freeSRtoPtUrineQnSubstance RatioPoint in time (spot)

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 87499-0 | HealthAssure