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LOINC Code 38746-4: 4,4'-Methylene bis(2-Chloroaniline) (Air) [Mass/Vol]

38746-4 is a LOINC code used to identify 4,4'-Methylene bis(2-Chloroaniline) (Air) [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 4,4'-Methylene bis(2-Chloroaniline). It is commonly used with the system or sample type Air.

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 4,4'-Methylene bis(2-Chloroaniline). It is commonly used with the system or sample type Air.

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

  • 4,4'-Methylene bis(2-Chloroaniline) [Mass/volume] in Air
  • 4,4'-Methylene bis(2-Chloroaniline)
  • 3,3'-dichloro-4,4'-diaminodiphenylmethane; 4,4'-diamino-3,3'-dichlorodiphenylmethane; 4,4'-MBOCA; Bis(3-chloro-4-aminophenyl)methane; Bis(4-amino-3-chlorophenyl)methane; Cl-MDA; Di(-4-amino-3-chlorophenyl)methane; DRUG/TOXICOLOGY; Drugs; II; Level; Mass concentration; MBOCA; Methylene orthochloroaniline; MoCA; Point in time; QNT; Quan; Quant; Quantitative; Random

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

4,4'-Methylene bis(2-Chloroaniline) (Air) [Mass/Vol]4,4'-Methylene bis(2-Chloroaniline) [Mass/volume] in Air4,4'-MBOCA Air-mCnc4,4'-Methylene bis(2-Chloroaniline)DRUG/TOX4,4'-Methylene bis(2-Chloroaniline), AirMCnc

Frequently asked questions

Code details

Code38746-4
SystemLOINC
Display name4,4'-Methylene bis(2-Chloroaniline) (Air) [Mass/Vol]
Description4,4'-Methylene bis(2-Chloroaniline)
Short name4,4'-MBOCA Air-mCnc
Component4,4'-Methylene bis(2-Chloroaniline)
PropertyMCnc
TimingPt
System (specimen)Air
ScaleQn
ClassDRUG/TOX
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.14
Last changed2.34

Consumer names

4,4'-Methylene bis(2-Chloroaniline), Air

Part names

4,4'-Methylene bis(2-Chloroaniline)MCncPtAirQnMass ConcentrationPoint 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.