LOINCActiveBoth

LOINC Code 40411-1: Amitriptyline Ql (Gast fld)

40411-1 is a LOINC code used to identify Amitriptyline Ql (Gast fld) 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 Amitriptyline. It is commonly used with the system or sample type Gast fld.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Amitriptyline. It is commonly used with the system or sample type Gast fld.

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

  • Amitriptyline [Presence] in Gastric fluid
  • Amitriptyline
  • Amit; Amitrip; Amitriptylene; Amitriptyln; DRUG/TOXICOLOGY; Drugs; Elatrol; Elavil; Endep; GAST; Gastric contents; Gastric fluid; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Trepiline; Tryptanol; Tryptizol

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

Amitriptyline Ql (Gast fld)Amitriptyline [Presence] in Gastric fluidAmitrip Gast QlAmitriptylineDRUG/TOXAmitriptyline, Stomach fluidPrThr

Frequently asked questions

Code details

Code40411-1
SystemLOINC
Display nameAmitriptyline Ql (Gast fld)
DescriptionAmitriptyline
Short nameAmitrip Gast Ql
ComponentAmitriptyline
PropertyPrThr
TimingPt
System (specimen)Gast fld
ScaleOrd
ClassDRUG/TOX
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.15
Last changed2.56

Consumer names

Amitriptyline, Stomach fluid

Part names

AmitriptylinePrThrPtGast fldOrdPresence or ThresholdPoint in time (spot)Gastric fluid

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 40411-1 | HealthAssure