LOINCActiveBoth

LOINC Code 14173-9: Progesterone Free (24H U) [Mass/Time]

14173-9 is a LOINC code used to identify Progesterone Free (24H U) [Mass/Time] 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 Progesterone.free. It is commonly used with the system or sample type Urine.

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 Progesterone.free. It is commonly used with the system or sample type Urine.

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

  • Progesterone Free [Mass/time] in 24 hour Urine
  • Progesterone.free
  • 1 day; 24 hours; 24HR; Chemistry; FR; Mass rate; mRate; Non-protein bound; P4; Prog; Proges; Progest; Progest Free; Progestin; QNT; Quan; Quant; Quantitative; UA; UR; Urn

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

Progesterone Free (24H U) [Mass/Time]Progesterone Free [Mass/time] in 24 hour UrineProgest Free 24h Ur-mRateProgesterone.freeCHEMFree progesterone, UrineMRat

Frequently asked questions

Code details

Code14173-9
SystemLOINC
Display nameProgesterone Free (24H U) [Mass/Time]
DescriptionProgesterone.free
Short nameProgest Free 24h Ur-mRate
ComponentProgesterone.free
PropertyMRat
Timing24H
System (specimen)Urine
ScaleQn
ClassCHEM
Example unitsug/24 H
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0k
Last changed2.73

Consumer names

Free progesterone, Urine

Part names

Progesterone.freeMRat24HUrineQnProgesterone FreeMass Rate24 hours

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 14173-9 | HealthAssure