What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 16182-8: ALP Isos Heat stability [Catalytic activity/Vol]

Name: LOINC Code 16182-8: ALP Isos Heat stability [Catalytic activity/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:26.374Z

16182-8 is a LOINC code used to identify ALP Isos Heat stability [Catalytic activity/Vol] 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 Alkaline phosphatase isoenzymes. 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 Alkaline phosphatase isoenzymes. 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: ACTIVE
Order vs observation: Both
Method: Heat stability

What it does not mean

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

Key facts

Alkaline phosphatase isoenzymes [Enzymatic activity/volume] in Serum or Plasma by Heat stability
Alkaline phosphatase isoenzymes
Alk; Alk phos; Alkaline phos; Alkaline phosphatase.total; ALKP; ALP; ALP Isos; AP; Catalytic Concentration; Chemistry; Hepatology; HS; ISO; Isoen; Isoenzyme; Liver; Phos; Phosphtase; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

ALP Isos Heat stability [Catalytic activity/Vol]Alkaline phosphatase isoenzymes [Enzymatic activity/volume] in Serum or Plasma by Heat stabilityALP Isos SerPl HS-cCncAlkaline phosphatase isoenzymesCHEMAlkaline phosphatase isoenzymes, BloodCCnc

Frequently asked questions

Code details

Code16182-8

SystemLOINC

Display nameALP Isos Heat stability [Catalytic activity/Vol]

DescriptionAlkaline phosphatase isoenzymes

Short nameALP Isos SerPl HS-cCnc

ComponentAlkaline phosphatase isoenzymes

PropertyCCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

MethodHeat stability

ClassCHEM

Example unitsarb U/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0l

Last changed2.73

Consumer names

Alkaline phosphatase isoenzymes, Blood

Part names

Alkaline phosphatase isoenzymesCCncPtSer/PlasQnHeat stabilityCatalytic ConcentrationPoint 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.