LOINCActive

LOINC Code 20052-7: Pressure Atmosphere by Mercury column

20052-7 is a LOINC code used to identify Pressure Atmosphere by Mercury column 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 Pressure. It is commonly used with the system or sample type Atmosphere.

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 Pressure. It is commonly used with the system or sample type Atmosphere.

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
  • Method: Mercury column

What it does not mean

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

Key facts

  • Pressure Atmosphere by Mercury column
  • Pressure
  • Barometric pressure; Lung; PB; Point in time; Pressure; PULMONARY; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Respiratory

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

Pressure Atmosphere by Mercury columnPress Atmosphere Mercury ColumnPressurePULMPresPtAtmosphere

Frequently asked questions

Code details

Code20052-7
SystemLOINC
Display namePressure Atmosphere by Mercury column
DescriptionPressure
Short namePress Atmosphere Mercury Column
ComponentPressure
PropertyPres
TimingPt
System (specimen)Atmosphere
ScaleQn
MethodMercury column
ClassPULM
Example unitsmm Hg
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.48

Part names

PressurePresPtAtmosphereQnMercury columnPoint 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 20052-7 | HealthAssure