LOINCActiveBoth

LOINC Code 46704-3: Dihydrocodeine Free+Hydrocodol Free Screen [Mass/Vol]

46704-3 is a LOINC code used to identify Dihydrocodeine Free+Hydrocodol Free Screen [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 Dihydrocodeine.free+Hydrocodol.free. It is commonly used with the system or sample type Ser/Plas.

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 Dihydrocodeine.free+Hydrocodol.free. 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
  • Method: Screen

What it does not mean

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

Key facts

  • Dihydrocodeine Free+Hydrocodol Free [Mass/volume] in Serum or Plasma by Screen method
  • Dihydrocodeine.free+Hydrocodol.free
  • DF-118; DHC; DHC Free; DHC+Hydrocodol Free; DHCPlus; Drocode; DRUG/TOXICOLOGY; Drugs; FR; Level; Mass concentration; Non-protein bound; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; Scn; Scr; Scrn; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

Dihydrocodeine Free+Hydrocodol Free Screen [Mass/Vol]Dihydrocodeine Free+Hydrocodol Free [Mass/volume] in Serum or Plasma by Screen methodDHC+Hydrocodol Free SerPl Scn-mCncDihydrocodeine.free+Hydrocodol.freeDRUG/TOXFree dihydrocodeine+Hydrocodol, BloodMCnc

Frequently asked questions

Code details

Code46704-3
SystemLOINC
Display nameDihydrocodeine Free+Hydrocodol Free Screen [Mass/Vol]
DescriptionDihydrocodeine.free+Hydrocodol.free
Short nameDHC+Hydrocodol Free SerPl Scn-mCnc
ComponentDihydrocodeine.free+Hydrocodol.free
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
MethodScreen
ClassDRUG/TOX
Example unitsng/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.19
Last changed2.70

Consumer names

Free dihydrocodeine+Hydrocodol, Blood

Part names

Dihydrocodeine.free+Hydrocodol.freeMCncPtSer/PlasQnScreenDihydrocodeine Free+Hydrocodol FreeMass ConcentrationPoint in time (spot)Serum or PlasmaToxicology screen

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 46704-3 | HealthAssure