LOINC

LOINC Code 66621-4: Pleural fibrosis [Reported]

66621-4 is a LOINC code used to identify Pleural fibrosis [Reported] 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 Pleural fibrosis. 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 Pleural fibrosis. 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: TRIAL
  • Method: Reported

What it does not mean

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

Key facts

  • Pleural fibrosis [Reported]
  • Pleural fibrosis
  • Radiograph
  • History; Ordinal; PhenX; Point in time; QL; Qual; Qualitative; Random; 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

Pleural fibrosis [Reported]Pleural fibrosis ReportedPleural fibrosisPHENXHxPt^Patient

Frequently asked questions

Code details

Code66621-4
SystemLOINC
Display namePleural fibrosis [Reported]
DescriptionPleural fibrosis
Short namePleural fibrosis Reported
ComponentPleural fibrosis
PropertyHx
TimingPt
System (specimen)^Patient
ScaleOrd
MethodReported
ClassPHENX
StatusTRIAL

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.38
Last changed2.65

Part names

Pleural fibrosisHxPt^PatientOrdReportedHistoryPoint 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 66621-4 | HealthAssure