LOINCActiveBoth

LOINC Code 53961-9: AFP.tumor marker Qn

53961-9 is a LOINC code used to identify AFP.tumor marker Qn 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 Alpha-1-Fetoprotein.tumor marker. 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 Alpha-1-Fetoprotein.tumor marker. 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

What it does not mean

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

Key facts

  • Alpha-1-fetoprotein.tumor marker [Units/volume] in Serum or Plasma
  • Alpha-1-Fetoprotein.tumor marker
  • A1; AFP; AFP-TM; Alfa; Alpha fetoprotein; Alphafetoprotein; Arbitrary concentration; Chemistry; Feto; i; Mark; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Tumor marker

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

AFP.tumor marker QnAlpha-1-fetoprotein.tumor marker [Units/volume] in Serum or PlasmaAFP-TM SerPl-aCncAlpha-1-Fetoprotein.tumor markerCHEMAlpha-fetoprotein tumor marker, BloodACnc

Frequently asked questions

Code details

Code53961-9
SystemLOINC
Display nameAFP.tumor marker Qn
DescriptionAlpha-1-Fetoprotein.tumor marker
Short nameAFP-TM SerPl-aCnc
ComponentAlpha-1-Fetoprotein.tumor marker
PropertyACnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example unitsarb U/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.26
Last changed2.73

Consumer names

Alpha-fetoprotein tumor marker, Blood

Part names

Alpha-1-fetoprotein.tumor markerACncPtSer/PlasQnArbitrary ConcentrationPoint in time (spot)Serum or Plasma

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 53961-9 | HealthAssure