LOINCActiveObservation

LOINC Code 88980-8: Swollen joint #

88980-8 is a LOINC code used to identify Swollen joint # 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 Swollen joint. 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 Swollen joint. 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

  • Swollen joint #
  • Swollen joint
  • This term was created for, but is not limited in use to, the Clinical Disease Activity Index (CDAI). For the CDAI, 28 joints are counted which includes shoulders, elbows, wrists, metacarpophalangeals (MCPs), proximal interphalangeals (PIPs) including thumb IP, and knees. Note that none of the lower extremity joints other than the knees are counted in the CDAI.
  • Cnt; Count; Number; Point in time; QNT; Quan; Quant; Quantitative; Random; Survey; SURVEY.GNHLTH

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

Swollen joint #Swollen jointSURVEY.GNHLTHNumPt^PatientQn

Frequently asked questions

Code details

Code88980-8
SystemLOINC
Display nameSwollen joint #
DescriptionSwollen joint
ComponentSwollen joint
PropertyNum
TimingPt
System (specimen)^Patient
ScaleQn
ClassSURVEY.GNHLTH
Example units#
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.64
Last changed2.64

Part names

Swollen jointNumPt^PatientQnNumber (count)Point 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 88980-8 | HealthAssure