LOINCActiveObservation

LOINC Code 50164-3: Acylcarnitine pattern (Specimen) [Interp]

50164-3 is a LOINC code used to identify Acylcarnitine pattern (Specimen) [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 Acylcarnitine pattern. It is commonly used with the system or sample type XXX.

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 Acylcarnitine pattern. It is commonly used with the system or sample type XXX.

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: Observation

What it does not mean

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

Key facts

  • Acylcarnitine pattern [Interpretation] in Specimen
  • Acylcarnitine pattern
  • Acyl carnitine; Acylcarni; Chemistry; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Misc; Miscellaneous; Nominal; Other; Point in time; Random; Spec; To be specified in another part of the message; Unspecified

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

Acylcarnitine pattern (Specimen) [Interp]Acylcarnitine pattern [Interpretation] in SpecimenAcylcarnitine pattern Spec-ImpAcylcarnitine patternCHEMAcylcarnitine pattern, SpecimenImp

Frequently asked questions

Code details

Code50164-3
SystemLOINC
Display nameAcylcarnitine pattern (Specimen) [Interp]
DescriptionAcylcarnitine pattern
Short nameAcylcarnitine pattern Spec-Imp
ComponentAcylcarnitine pattern
PropertyImp
TimingPt
System (specimen)XXX
ScaleNom
ClassCHEM
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.22
Last changed2.69

Consumer names

Acylcarnitine pattern, Specimen

Part names

Acylcarnitine patternImpPtXXXNomImpression/interpretation of studyPoint 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 50164-3 | HealthAssure