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LOINC Code 75217-0: Biotinidase (DBS) [Catalytic activity/Vol]

75217-0 is a LOINC code used to identify Biotinidase (DBS) [Catalytic activity/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 Biotinidase. It is commonly used with the system or sample type Bld.dot.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Biotinidase. 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

Biotinidase [Enzymatic activity/volume] in DBS
Biotinidase
Biotinidase is a marker for biotinidase deficiency, which is one of the core conditions on the HHS Secretary's Recommended Uniform Screening Panel for newborn screening. The submitter's lab uses Astoria-Pacific's SPOTCHECK analyzer to measure biotinidase, which is reported in ERUs (enzyme response units). ERU units are defined as follows"One ERU is equal to one micromole of PABA (product) produced from Biotin-PAB (substrate) per 100 mL per 90 minutes in the extract from a dried blood spot."
Blood; Catalytic Concentration; Chemistry; DBS; Dried blood spot; Filter paper; FP; Point in time; QNT; Quan; Quant; Quantitative; Random; 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

Biotinidase (DBS) [Catalytic activity/Vol]Biotinidase [Enzymatic activity/volume] in DBSBiotinidase DBS-cCncBiotinidaseCHEMBiotinidase, Dried blood spotCCnc

Frequently asked questions

Code details

Code75217-0
SystemLOINC
Display nameBiotinidase (DBS) [Catalytic activity/Vol]
DescriptionBiotinidase
Short nameBiotinidase DBS-cCnc
ComponentBiotinidase
PropertyCCnc
TimingPt
System (specimen)Bld.dot
ScaleQn
ClassCHEM
Example unitsnmoL/mL/min
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.48
Last changed2.73

Consumer names

Biotinidase, Dried blood spot

Part names

BiotinidaseCCncPtBld.dotQnCatalytic 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 75217-0 | HealthAssure