LOINCActiveBoth

LOINC Code 78803-4: Barbital (Hair) [Mass/Mass]

78803-4 is a LOINC code used to identify Barbital (Hair) [Mass/Mass] 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 Barbital. It is commonly used with the system or sample type Hair.

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 Barbital. It is commonly used with the system or sample type Hair.

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

  • Barbital [Mass/mass] in Hair
  • Barbital
  • Hair analysis provides a longer surveillance window for drug use than other methods because hair retains drugs longer (weeks or months, compared with days detectable in blood or urine). Collecting hair specimens also is less invasive than urine or blood sampling. Drawbacks for hair analysis include expense, and environmental contamination of the specimen.
  • Addiction; Barbitone; Barbiturate; Diethylmalonylurea; DRUG/TOXICOLOGY; Drugs; Drugs of abuse; Har; Illicit; Mass Content; Megal; Neurinase; Pneumogeine-barbital; Point in time; PotentialForAbuse; Provervon n; QNT; Quan; Quant; Quantitative; Random; Veraine buriat; Veronal; Vitanerton N Kerne

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

Barbital (Hair) [Mass/Mass]Barbital [Mass/mass] in HairBarbital Hair-mCntBarbitalDRUG/TOXBarbital, HairMCnt

Frequently asked questions

Code details

Code78803-4
SystemLOINC
Display nameBarbital (Hair) [Mass/Mass]
DescriptionBarbital
Short nameBarbital Hair-mCnt
ComponentBarbital
PropertyMCnt
TimingPt
System (specimen)Hair
ScaleQn
ClassDRUG/TOX
Example unitspg/mg
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.54
Last changed2.54

Consumer names

Barbital, Hair

Part names

BarbitalMCntPtHairQnMass ContentPoint in time (spot)

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 78803-4 | HealthAssure