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.

LOINCActiveObservation

LOINC Code 91569-4: Frequency of medicine or drug injection with needle during time period with highest use 12 months

Name: LOINC Code 91569-4: Frequency of medicine or drug injection with needle during time period with highest use 12 months
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:21.441Z

91569-4 is a LOINC code used to identify Frequency of medicine or drug injection with needle during time period with highest use 12 months 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 Frequency of medicine or drug injection with needle during time period with highest use. 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 Frequency of medicine or drug injection with needle during time period with highest use. 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
Order vs observation: Observation

What it does not mean

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

Key facts

Frequency of medicine or drug injection with needle during time period with highest use 12 months
Frequency of medicine or drug injection with needle during time period with highest use
1 year; 12Mos; Count/time; Drugs; Freq drug inject needle highest use; H+P; H+P.HX; Inj; NDL; nRate; Number rate; Number Rate = Count/Time; Ordinal; P prime; QL; Qual; Qualitative; Screen

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

Frequency of medicine or drug injection with needle during time period with highest use 12 monthsFreq drug inject needle highest use 12MoFrequency of medicine or drug injection with needle during time period with highest useH&P.HXNRat12Mo^Patient

Frequently asked questions

Code details

Code91569-4

SystemLOINC

Display nameFrequency of medicine or drug injection with needle during time period with highest use 12 months

DescriptionFrequency of medicine or drug injection with needle during time period with highest use

Short nameFreq drug inject needle highest use 12Mo

ComponentFrequency of medicine or drug injection with needle during time period with highest use

PropertyNRat

Timing12Mo

System (specimen)^Patient

ScaleOrd

ClassH&P.HX

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.66

Last changed2.66

Part names

Frequency of medicine or drug injection with needle during time period with highest useNRat12Mo^PatientOrdNumber Rate12 months

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.