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Term Description

The Simplified (or Simple) Disease Activity Index (SDAI) instrument contains several measurements or scores used to determine rheumatoid arthritis disease activity. The overall SDAI score is calculated using a linear sum of the following: tender 28 joint count, swollen 28 joint count, patient global assessment, physician global assessment, and C-reactive protein levels. The SDAI is similar to the CDAI (Clinical Disease Activity Index, LOINC 75842-5), which uses the same measures as the SDAI except it does not include the measurement of C-reactive protein levels.

Panel Hierarchy

Details for each LOINC in Panel LHC-Forms

LOINCNameR/O/CCardinalityExample UCUM Units
75843-3Simplified disease activity index [SDAI]
Indent75845-8Total score [SDAI]{score}

LOINC Names Get Info

Fully-Specified Name
Simplified disease activity index:-:Pt:^Patient:-:SDAI
Long Common Name
Simplified disease activity index [SDAI]

Part Model Get Info

  • Component
    Simplified disease activity index
    LP186200-4
    • Analyte
      Simplified disease activity index
      LP186200-4
      • Component Numerator
        Simplified disease activity index
        LP186200-4
        • Component Numerator Core
          Simplified disease activity index
          LP186200-4
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    -
    LP6769-6
  • Time
    Pt
    LP6960-1
  • System
    ^Patient
    LP310005-6
    • System Core
      NULL
       
    • Super System
      Patient
      LP6985-8
  • Scale
    -
    LP7747-1
  • Method
    SDAI
    LP186112-1

Basic Attributes

Class
PANEL.SURVEY.GNHLTH
Type
Surveys
First Released
Version 2.50
Last Updated
Version 2.71 (PANEL)
Order vs. Observation
Order
Panel Type
Panel

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=75843-3