LOINC

LOINC Code 14120-0: Free PSA/Total PSA [Mass fraction]

14120-0 is a LOINC code used to identify Free PSA/Total PSA [Mass fraction] 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 Prostate specific Ag.free/Prostate specific Ag.total. 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 Prostate specific Ag.free/Prostate specific Ag.total. 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: DEPRECATED

What it does not mean

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

Key facts

  • Deprecated Prostate Specific Ag Free/Prostate specific Ag.total in Serum or Plasma
  • Prostate specific Ag.free/Prostate specific Ag.total
  • Reported as % of total PSA; Free and total PSA measured in ng/ml
  • Chemistry; fPSA; FR; Genitourinary; GU; Kallikrein 3; Mass fraction; Non-protein bound; Oncology; P-30 antigen; Percent; Pl; Plasma; Plsm; Point in time; PS; PSA; PSA Free; QNT; Quan; Quant; Quantitative; Random; Seminin; SerP; SerPl; SerPlas; Serum; Serum or plasma; Spec; SR; Tot; Totl; Tumor marker; URO; Urology

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

Free PSA/Total PSA [Mass fraction]Deprecated Prostate Specific Ag Free/Prostate specific Ag.total in Serum or PlasmaDeprecated PSA Free Fr SerPlProstate specific Ag.free/Prostate specific Ag.totalCHEMFree PSA/Total Prostate Specific Antigen (Total PSA), BloodMFr

Frequently asked questions

Code details

Code14120-0
SystemLOINC
Display nameFree PSA/Total PSA [Mass fraction]
DescriptionProstate specific Ag.free/Prostate specific Ag.total
Short nameDeprecated PSA Free Fr SerPl
ComponentProstate specific Ag.free/Prostate specific Ag.total
PropertyMFr
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example units%
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0k
Last changed2.70

Consumer names

Free PSA/Total Prostate Specific Antigen (Total PSA), Blood

Part names

Prostate specific Ag.free/Prostate specific Ag.totalMFrPtSer/PlasQnMass fractionPoint 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 14120-0 | HealthAssure