LOINCActiveBoth

LOINC Code 42913-4: Hemoglobin spec 1 Ql (Specimen gastrointestinal lower)

42913-4 is a LOINC code used to identify Hemoglobin spec 1 Ql (Specimen gastrointestinal lower) 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 Hemoglobin^1st specimen. It is commonly used with the system or sample type XXX^Patient.gastrointestinal.lower.

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 Hemoglobin^1st specimen. It is commonly used with the system or sample type XXX^Patient.gastrointestinal.lower.

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

  • Hemoglobin [Presence] in Specimen from gastrointestinal lower --1st specimen
  • Hemoglobin^1st specimen
  • Acute specimen; Chemistry; First; gastro lower; Haemoglobin; Hb; Hgb; Low; Misc; Miscellaneous; Ordinal; Other; Point in time; PR; Pre immunization; QL; Qual; Qualitative; Random; Screen; sp1; Spec; To be specified in another part of the message; Unspecified; xxx pat gastro

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

Hemoglobin spec 1 Ql (Specimen gastrointestinal lower)Hemoglobin [Presence] in Specimen from gastrointestinal lower --1st specimenHgb sp1 Spec gastro lower QlHemoglobin^1st specimenCHEMHemoglobin specimen 1, gastrointestinal lower SpecimenPrThr

Frequently asked questions

Code details

Code42913-4
SystemLOINC
Display nameHemoglobin spec 1 Ql (Specimen gastrointestinal lower)
DescriptionHemoglobin^1st specimen
Short nameHgb sp1 Spec gastro lower Ql
ComponentHemoglobin^1st specimen
PropertyPrThr
TimingPt
System (specimen)XXX^Patient.gastrointestinal.lower
ScaleOrd
ClassCHEM
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.16
Last changed2.82

Consumer names

Hemoglobin specimen 1, gastrointestinal lower Specimen

Part names

Hemoglobin^1st specimenPrThrPtXXX^Patient.gastrointestinal.lowerOrdPresence or ThresholdPoint 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 42913-4 | HealthAssure