LOINC Code 94673-1: 25-hydroxyvitamin D/24,25-dihydroxyvitamin D3+24,25-dihydroxyvitamin D2 [Mass ratio]
94673-1 is a LOINC code used to identify 25-hydroxyvitamin D/24,25-dihydroxyvitamin D3+24,25-dihydroxyvitamin D2 [Mass ratio] 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 Calcidiol+ercalcidiol/24r-Hydroxycalcidiol+24r-Hydroxyercalcidiol. It is commonly used with the system or sample type Ser/Plas.
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 Calcidiol+ercalcidiol/24r-Hydroxycalcidiol+24r-Hydroxyercalcidiol. It is commonly used with the system or sample type Ser/Plas.
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
- 25-Hydroxyvitamin D3+25-Hydroxyvitamin D2/24,25-dihydroxyvitamin D3+24,25-dihydroxyvitamin D2 [Mass Ratio] in Serum or Plasma
- Calcidiol+ercalcidiol/24r-Hydroxycalcidiol+24r-Hydroxyercalcidiol
- 24(R),25-dihydroxycholecalciferol; 24,25(OH)2 VitD; 24,25-dihydroxy cholecalciferol; 24,25-dihydroxy vitamin D; 24,25-Dihydroxyvitamin D; 24,25-Dihydroxyvitamin D2 +24,25-Dihydroxyvitamin D3; 24r-Hydroxy calcidiol; 24R-OH-Calcidiol; 25 Hydroxyvitamin D 2; 25 Hydroxyvitamin D2; 25(OH)D2; 25(OH)D3; 25(OH)D3+25(OH)D2; 25D3+25D2/24,25D3+24,25D2; 25-Hydroxy calciferol; 25-Hydroxy Vit D total; 25-Hydroxycalciferol; 25-hydroxycholecalciferol; 25-Hydroxyergocalciferol; 25-hydroxyvitamin D; 25-Hydroxyvitamin D 2; 25-hydroxyvitamin D 3; 25-Hydroxyvitamin D2; 25-Hydroxyvitamin D2+25-Hydroxyvitamin D3/24,25 Dihydroxyvitamin D; 25-Hydroxyvitamin D2+25-Hydroxyvitamin D3/24,25 Dihydroxyvitamin D2+24,25 Dihydroxyvitamin D3; 25-hydroxyvitamin D3; 9,10-Secoergosta-5,7,10(19),22-tetraene-3 beta,25-diol; Calciderol; Calcidiol+Calciferol; Calcidiol+Ercalcidiol; Calcifediol; Chemistry; CYP24A1 gene; Ercalcidiol; Ercalcidiol+calcidiol/24r-Hydroxycalcidiol; Esoteric; Hydroxy calcidiol; Hypercalcemia; Mass concentration ratio; Mass ratio; MCRto; OH-Calcidiol; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Vitamin D 25 hydroxy
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
Frequently asked questions
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.