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.

LOINCActiveObservation

LOINC Code 46755-5: Carnitine uptake defect/CPT1 deficiency Ql (DBS) [Interp]

Name: LOINC Code 46755-5: Carnitine uptake defect/CPT1 deficiency Ql (DBS) [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:31.753Z

46755-5 is a LOINC code used to identify Carnitine uptake defect/CPT1 deficiency Ql (DBS) [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 Carnitine uptake defect &or CPT1 deficiency. It is commonly used with the system or sample type Bld.dot.

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 Carnitine uptake defect &or CPT1 deficiency. It is commonly used with the system or sample type Bld.dot.

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

Carnitine uptake defect/CPT1 deficiency newborn screen interpretation
Carnitine uptake defect &or CPT1 deficiency
Blood; Carnitine.total; Chemistry; CUD; CUD/CPT1; DBS; Dried blood spot; Filter paper; FP; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; WB; Whole blood

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

Carnitine uptake defect/CPT1 deficiency Ql (DBS) [Interp]Carnitine uptake defect/CPT1 deficiency newborn screen interpretationCUD/CPT1 DBS-ImpCarnitine uptake defect &or CPT1 deficiencyCHEMCarnitine uptake defect/CPT1 deficiency, Dried blood spotImp

Frequently asked questions

Code details

Code46755-5

SystemLOINC

Display nameCarnitine uptake defect/CPT1 deficiency Ql (DBS) [Interp]

DescriptionCarnitine uptake defect &or CPT1 deficiency

Short nameCUD/CPT1 DBS-Imp

ComponentCarnitine uptake defect &or CPT1 deficiency

PropertyImp

TimingPt

System (specimen)Bld.dot

ScaleOrd

ClassCHEM

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.19

Last changed2.29

Consumer names

Carnitine uptake defect/CPT1 deficiency, Dried blood spot

Part names

Carnitine uptake defect &or CPT1 deficiencyImpPtBld.dotOrdCarnitine uptake defect/CPT1 deficiencyImpression/interpretation of studyPoint in time (spot)DBS

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.