LOINCActiveObservation

LOINC Code 45181-5: 19q chromosome del Molgen Ql (Bld/Tiss)

45181-5 is a LOINC code used to identify 19q chromosome del Molgen Ql (Bld/Tiss) 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 19q chromosome deletion. It is commonly used with the system or sample type Bld/Tiss.

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 19q chromosome deletion. It is commonly used with the system or sample type Bld/Tiss.

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
  • Method: Molgen

What it does not mean

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

Key facts

  • 19q chromosome deletion [Presence] in Blood or Tissue by Molecular genetics method
  • 19q chromosome deletion
  • Arbitrary; Blood; Chromosom; Chromosomes; Del; Deletions; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.DELETIONS; Ordinal; PCR; Point in time; QL; Qual; Qualitative; Random; Screen; Tissue; Tissue, unspecified; WB; Whole blood; Whole blood or Tissue

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

19q chromosome del Molgen Ql (Bld/Tiss)19q chromosome deletion [Presence] in Blood or Tissue by Molecular genetics method19q Chrom Del Bld/T Ql19q chromosome deletionMOLPATH.DEL19q chromosome deletion analysis, Blood or tissue specimenArb

Frequently asked questions

Code details

Code45181-5
SystemLOINC
Display name19q chromosome del Molgen Ql (Bld/Tiss)
Description19q chromosome deletion
Short name19q Chrom Del Bld/T Ql
Component19q chromosome deletion
PropertyArb
TimingPt
System (specimen)Bld/Tiss
ScaleOrd
MethodMolgen
ClassMOLPATH.DEL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.17
Last changed2.17

Consumer names

19q chromosome deletion analysis, Blood or tissue specimen

Part names

19q chromosome deletionArbPtBld/TissOrdMolgenArbitraryPoint in time (spot)Blood or TissueMolecular genetics

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 45181-5 | HealthAssure