LOINCActiveObservation

LOINC Code 99528-2: Thickness (Interventricular septum) [Length]

99528-2 is a LOINC code used to identify Thickness (Interventricular septum) [Length] 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 Thickness. It is commonly used with the system or sample type Heart.interventricular septum.

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 Thickness. It is commonly used with the system or sample type Heart.interventricular septum.

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: Observation

What it does not mean

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

Key facts

  • Thickness [Length] of Interventricular septum
  • Thickness
  • Cardiac; Hrt; IS; IVS; Length; Pathology; Point in time; QNT; Quan; Quant; Quantitative; Random; Thick

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

Thickness (Interventricular septum) [Length]Thickness [Length] of Interventricular septumThickness IVSThicknessPATHThickness, Interventricular SeptumLen

Frequently asked questions

Code details

Code99528-2
SystemLOINC
Display nameThickness (Interventricular septum) [Length]
DescriptionThickness
Short nameThickness IVS
ComponentThickness
PropertyLen
TimingPt
System (specimen)Heart.interventricular septum
ScaleQn
ClassPATH
Example unitscm
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.72
Last changed2.72

Consumer names

Thickness, Interventricular Septum

Part names

ThicknessLenPtHeart.interventricular septumQnLengthPoint in time (spot)Heart interventricular septum

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 99528-2 | HealthAssure