LOINCActiveBoth

LOINC Code 74879-8: Galactose 1 phosphate post therapeutic diet (DBS) [Mass/Vol]

74879-8 is a LOINC code used to identify Galactose 1 phosphate post therapeutic diet (DBS) [Mass/Vol] 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 Galactose 1 phosphate^post therapeutic diet. 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 Galactose 1 phosphate^post therapeutic diet. 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: Both

What it does not mean

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

Key facts

  • Galactose 1 phosphate [Mass/volume] in DBS --post therapeutic diet
  • Galactose 1 phosphate^post therapeutic diet
  • This test measures the galactose-1-phosphate level in children who have been diagnosed with galactosemia and are on a therapeutic diet for their condition. Dried blood spot specimens are sent to the lab for monitoring tests periodically. The galactose-1-phosphate level is used to monitor the patient's progress.
  • After; Blood; Cerebrose; CHEMISTRY.CHALLENGE TESTING; DBS; Dried blood spot; Filter paper; FP; GAL-1-P; Gal1PO4; GAL-1-PO4; Galactose tolerance test; i; i Phos; Inorganic phosphate; Level; Mass concentration; p diet; Phos; Phosphate total; Phosphorous; Phosphorus; Phosphrous; Pi; PO4; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; Ther; 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

Galactose 1 phosphate post therapeutic diet (DBS) [Mass/Vol]Galactose 1 phosphate [Mass/volume] in DBS --post therapeutic dietGal1PO4 p diet DBS-mCncGalactose 1 phosphate^post therapeutic dietCHALGalactose 1 phosphate after Therapeutic Diet, Dried blood spotMCnc

Frequently asked questions

Code details

Code74879-8
SystemLOINC
Display nameGalactose 1 phosphate post therapeutic diet (DBS) [Mass/Vol]
DescriptionGalactose 1 phosphate^post therapeutic diet
Short nameGal1PO4 p diet DBS-mCnc
ComponentGalactose 1 phosphate^post therapeutic diet
PropertyMCnc
TimingPt
System (specimen)Bld.dot
ScaleQn
ClassCHAL
Example unitsmg/dl
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.48
Last changed2.61

Consumer names

Galactose 1 phosphate after Therapeutic Diet, Dried blood spot

Part names

Galactose 1 phosphate^post therapeutic dietMCncPtBld.dotQnMass ConcentrationPoint 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.

LOINC Code 74879-8 | HealthAssure