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 16316-2: Acid phosphatase tartrate resistant (Bld) [Catalytic activity/Vol]

Name: LOINC Code 16316-2: Acid phosphatase tartrate resistant (Bld) [Catalytic activity/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

16316-2 is a LOINC code used to identify Acid phosphatase tartrate resistant (Bld) [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 Acid phosphatase.tartrate resistant. It is commonly used with the system or sample type Bld.

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 Acid phosphatase.tartrate resistant. It is commonly used with the system or sample type Bld.

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

Acid phosphatase tartrate resistant [Enzymatic activity/volume] in Blood
Acid phosphatase.tartrate resistant
Ac Phos; Acd; Acid phosphatase.total; Acids; AcP; ACP TRAP; Blood; Catalytic Concentration; Chemistry; Phos; Phosphtase; Point in time; QNT; Quan; Quant; Quantitative; Random; TRAP; Tumor marker; WB; Whole blood

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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Acid phosphatase tartrate resistant (Bld) [Catalytic activity/Vol] (16316-2)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Acid phosphatase tartrate resistant (Bld) [Catalytic activity/Vol]Acid phosphatase tartrate resistant [Enzymatic activity/volume] in BloodACP TRAP Bld-cCncAcid phosphatase.tartrate resistantCHEMAcid phosphatase tartrate resistant, BloodCCnc

Frequently asked questions

Code details

Code16316-2

SystemLOINC

Display nameAcid phosphatase tartrate resistant (Bld) [Catalytic activity/Vol]

DescriptionAcid phosphatase.tartrate resistant

Short nameACP TRAP Bld-cCnc

ComponentAcid phosphatase.tartrate resistant

PropertyCCnc

TimingPt

System (specimen)Bld

ScaleQn

ClassCHEM

Example unitsarb U/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0l

Last changed2.68

Consumer names

Acid phosphatase tartrate resistant, Blood

Part names

Acid phosphatase.tartrate resistantCCncPtBldQnAcid phosphatase tartrate resistantCatalytic ConcentrationPoint in time (spot)Blood

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.