LOINCActive

LOINC Code 19925-7: FEV1/FVC Predicted

19925-7 is a LOINC code used to identify FEV1/FVC Predicted 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 Volume expired during 1.0 s of forced expiration/Forced vital capacity. 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 Volume expired during 1.0 s of forced expiration/Forced vital capacity. 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
  • Method: Predicted

What it does not mean

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

Key facts

  • FEV1/FVC Predicted
  • Volume expired during 1.0 s of forced expiration/Forced vital capacity
  • Breathing; End tidal volume; Exp; FEV; FEV1; FEV1%; FEV1/FVC; Forced expiratory volume in 1 second; FVC; Lung; Lungs; Point in time; PULMONARY; Pulmonology; QNT; Quan; Quant; Quantitative; Random; Respiratory; RS; S prime; VC; Vet; Vol; Vol exp; Volume ratio

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

FEV1/FVC PredictedVolume expired during 1.0 s of forced expiration/Forced vital capacityPULMVRtoPtRespiratory systemQn

Frequently asked questions

Code details

Code19925-7
SystemLOINC
Display nameFEV1/FVC Predicted
DescriptionVolume expired during 1.0 s of forced expiration/Forced vital capacity
Short nameFEV1/FVC Predicted
ComponentVolume expired during 1.0 s of forced expiration/Forced vital capacity
PropertyVRto
TimingPt
System (specimen)Respiratory system
ScaleQn
MethodPredicted
ClassPULM
Example units%
StatusACTIVE

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.73

Part names

Volume expired during 1.0 s of forced expiration/Forced vital capacityVRtoPtRespiratory systemQnPredictedVolume RatioPoint 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 19925-7 | HealthAssure