LOINCActive

LOINC Code 46251-5: Age group

46251-5 is a LOINC code used to identify Age group 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 Age group. 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 Age group. 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

  • Age group
  • Age group is an observation class that is used in the infobutton R-MIM and it represents an age range that the patient falls into.
  • CLIN; Ordinal; Point in time; QL; Qual; Qualitative; Random; Screen; 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

Age groupCLINTypePt^PatientOrdPoint in time (spot)

Frequently asked questions

Code details

Code46251-5
SystemLOINC
Display nameAge group
Short nameAge group
ComponentAge group
PropertyType
TimingPt
System (specimen)^Patient
ScaleOrd
ClassCLIN
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.19
Last changed2.27

Part names

Age groupTypePt^PatientOrdPoint 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 46251-5 | HealthAssure