LOINCActiveBoth

LOINC Code 88866-9: Other Chemical (Specimen) [Mass/Mass]

88866-9 is a LOINC code used to identify Other Chemical (Specimen) [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 Chemical XXX. It is commonly used with the system or sample type XXX.

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 Chemical XXX. It is commonly used with the system or sample type XXX.

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

Other Chemical [Mass/mass] in Specimen
Chemical XXX
Veterinary and human toxicology testing may include analysis of thousands of chemicals, including organochlorines, organophosphates, carbamates, aliphatic hydrocarbons, industrial pollutants, disinfectants, antioxidants, miscellaneous pesticides, polycyclic aromatics, alkyl benzenes, some natural products, vitamins, plant and fungal toxins and some drugs. LOINC has qualitative and quantitative codes for many specific chemicals that are more commonly tested for, but for chemicals that are identified that do not have a specific LOINC code, [LOINC88865-1] code is used to report that the chemical was detected, and this term is use to report its quantity, if applicable.
DRUG/TOXICOLOGY; Drugs; Mass content; Misc; Miscellaneous; Other; Other Chemical; Point in time; QNT; Quan; Quant; Quantitative; Random; Spec; To be specified in another part of the message; Unspecified; Vet; Veterinary

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

Other Chemical (Specimen) [Mass/Mass]Other Chemical [Mass/mass] in SpecimenOther Chemical Spec-mCntChemical XXXDRUG/TOXOther chemical, SpecimenMCnt

Frequently asked questions

Code details

Code88866-9
SystemLOINC
Display nameOther Chemical (Specimen) [Mass/Mass]
DescriptionChemical XXX
Short nameOther Chemical Spec-mCnt
ComponentChemical XXX
PropertyMCnt
TimingPt
System (specimen)XXX
ScaleQn
ClassDRUG/TOX
Example unitsmg/kg
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.64
Last changed2.69

Consumer names

Other chemical, Specimen

Part names

Chemical XXXMCntPtXXXQnOther ChemicalMass 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.