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.

LOINCObservation

LOINC Code 50735-0: Serotonin release.heparin.low molecular weight (S) [Interp]

Name: LOINC Code 50735-0: Serotonin release.heparin.low molecular weight (S) [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:34.496Z

50735-0 is a LOINC code used to identify Serotonin release.heparin.low molecular weight (S) [Interp] 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 Serotonin release.heparin.low molecular weight interpretation. It is commonly used with the system or sample type Ser.

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 Serotonin release.heparin.low molecular weight interpretation. It is commonly used with the system or sample type Ser.

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: DISCOURAGED
Order vs observation: Observation

What it does not mean

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

Key facts

Serotonin release.heparin.low molecular weight in Serum
Serotonin release.heparin.low molecular weight interpretation
5-HT; 5-hydroxytryptamine; 5-hydroxytryptophane; C10H12N2O; Clexane; Enoxaparin; Enteramine; Hep; Hepar; Heparin dependent platelet antibody; Heparn; Impression; Impression/interpretation of study; Impressions; Interp; Interpret; Interpretation; Interpt; Intrp; LMWH; Lovenox; Nominal; Point in time; Random; Serology; Serotonin release assay; Serum; SR; SRA; SRA LMW interp; Wt

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

Serotonin release.heparin.low molecular weight (S) [Interp]Serotonin release.heparin.low molecular weight in SerumSRA LMW interp Ser-ImpSerotonin release.heparin.low molecular weight interpretationSEROSerotonin release.heparin.low molecular weight, BloodImp

Frequently asked questions

Code details

Code50735-0

SystemLOINC

Display nameSerotonin release.heparin.low molecular weight (S) [Interp]

DescriptionSerotonin release.heparin.low molecular weight interpretation

Short nameSRA LMW interp Ser-Imp

ComponentSerotonin release.heparin.low molecular weight interpretation

PropertyImp

TimingPt

System (specimen)Ser

ScaleNom

ClassSERO

StatusDISCOURAGED

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.22

Last changed2.73

Consumer names

Serotonin release.heparin.low molecular weight, Blood

Part names

Serotonin release.heparin.low molecular weight interpretationImpPtSerNomSerotonin release.heparin.low molecular weightImpression/interpretation of studyPoint in time (spot)Serum

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.