LOINCActiveOrder

LOINC Code 105751-2: Lactose challenge panel-hydrogen (Exhl gas)

105751-2 is a LOINC code used to identify Lactose challenge panel-hydrogen (Exhl gas) 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 Lactose challenge panel-hydrogen. It is commonly used with the system or sample type Exhl gas.

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 Lactose challenge panel-hydrogen. It is commonly used with the system or sample type Exhl gas.

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: Order
  • Panel type: Panel

What it does not mean

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

Key facts

  • Lactose challenge panel-hydrogen - Exhaled gas
  • Lactose challenge panel-hydrogen
  • Breath; CHEMISTRY.CHALLENGE TESTING; ExG; Exhaled gas; Exhaled gas (=breath); Gases; H2; Hyd; Lactose BT; Lactose challenge Pnl; LTT; Pan; PANEL.CHALLENGE; Panl; Pnl; Point in time; Random

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

Lactose challenge panel-hydrogen (Exhl gas)Lactose challenge panel-hydrogen - Exhaled gasLactose challenge panel-H ExGLactose challenge panel-hydrogenPANEL.CHALLactose challenge panel-hydrogen, Exhaled gas-

Frequently asked questions

Code details

Code105751-2
SystemLOINC
Display nameLactose challenge panel-hydrogen (Exhl gas)
DescriptionLactose challenge panel-hydrogen
Short nameLactose challenge panel-H ExG
ComponentLactose challenge panel-hydrogen
Property-
TimingPt
System (specimen)Exhl gas
Scale-
ClassPANEL.CHAL
StatusACTIVE
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.78
Last changed2.78

Consumer names

Lactose challenge panel-hydrogen, Exhaled gas

Part names

Lactose challenge panel-hydrogen-PtExhl gasPoint in time (spot)Exhaled gas

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 105751-2 | HealthAssure