LOINCActive

LOINC Code 9303-9: Respiratory rate --resting

9303-9 is a LOINC code used to identify Respiratory rate --resting 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 Breaths^resting. It is commonly used with the system or sample type Respiratory system.

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 Breaths^resting. It is commonly used with the system or sample type Respiratory system.

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

  • Respiratory rate --resting
  • Breaths^resting
  • Breathing; Count/time; Lungs; nRate; Number rate; Number Rate = Count/Time; Point in time; QNT; Quan; Quant; Quantitative; Random; RESP.MOLEC; Respiratory rate; RS

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

Respiratory rate --restingResp rate RestingBreaths^restingRESP.MOLECNRatPtRespiratory system

Frequently asked questions

Code details

Code9303-9
SystemLOINC
Display nameRespiratory rate --resting
DescriptionBreaths^resting
Short nameResp rate Resting
ComponentBreaths^resting
PropertyNRat
TimingPt
System (specimen)Respiratory system
ScaleQn
ClassRESP.MOLEC
Example unitsbreaths/min
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0i
Last changed2.42

Part names

Breaths^restingNRatPtRespiratory systemQnNumber RatePoint 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 9303-9 | HealthAssure