LOINCActiveObservation

LOINC Code 95594-8: 25-hydroxyvitamin D3 (BldC) [Mass/Vol]

95594-8 is a LOINC code used to identify 25-hydroxyvitamin D3 (BldC) [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 Calcidiol. It is commonly used with the system or sample type BldC.

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 Calcidiol. It is commonly used with the system or sample type BldC.

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

What it does not mean

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

Key facts

25-hydroxyvitamin D3 [Mass/volume] in Capillary blood
Calcidiol
Capillary blood has been shown to yield statistically higher 25(OH)D levels compared with venipuncture samples [PMID18805487].
25(OH)D3; 25-hydroxycholecalciferol; 25-hydroxyvitamin D 3; 25-hydroxyvitamin D3; Blood - capillary; Calciderol; Calcifediol; Cap bld; Cap blood; Capillary bld; Capillary blood; Chemistry; Endocrine; Endocrinology; Finger stick; Level; Mass concentration; Point in time; QNT; Quan; Quant; Quantitative; Random; 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

25-hydroxyvitamin D3 (BldC) [Mass/Vol]25-hydroxyvitamin D3 [Mass/volume] in Capillary blood25(OH)D3 BldC-mCncCalcidiolCHEM25-hydroxyvitamin D3, BloodMCnc

Frequently asked questions

Code details

Code95594-8
SystemLOINC
Display name25-hydroxyvitamin D3 (BldC) [Mass/Vol]
DescriptionCalcidiol
Short name25(OH)D3 BldC-mCnc
ComponentCalcidiol
PropertyMCnc
TimingPt
System (specimen)BldC
ScaleQn
ClassCHEM
Example unitsng/mL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.69
Last changed2.69

Consumer names

25-hydroxyvitamin D3, Blood

Part names

CalcidiolMCncPtBldCQn25-hydroxyvitamin D3Mass ConcentrationPoint in time (spot)Blood capillary

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 95594-8 | HealthAssure