LOINCActive

LOINC Code 64657-0: Progesterone-progestin hormone treatment

64657-0 is a LOINC code used to identify Progesterone-progestin hormone treatment 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-progestin hormone treatment. It is commonly used with the system or sample type ^Patient.

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 Progesterone-progestin hormone treatment. It is commonly used with the system or sample type ^Patient.

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

What it does not mean

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

Key facts

  • Progesterone-progestin hormone treatment
  • H+P; H+P.HX; Horm; Nominal; P prime; P4; Point in time; Prog; Proges; Progest; Progesterone-progestin hormone Rx; Progestin; Random; Tx; Typ

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-progestin hormone treatmentProgesterone-progestin hormone RxH&P.HXTypePt^PatientNom

Frequently asked questions

Code details

Code64657-0
SystemLOINC
Display nameProgesterone-progestin hormone treatment
Short nameProgesterone-progestin hormone Rx
ComponentProgesterone-progestin hormone treatment
PropertyType
TimingPt
System (specimen)^Patient
ScaleNom
ClassH&P.HX
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.66

Part names

Progesterone-progestin hormone treatmentTypePt^PatientNomPoint 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.

LOINC Code 64657-0 | HealthAssure