75845-8

LOINC code 75845-8 identifies "Total score [SDAI]". The Simplified Disease Activity Index (SDAI) is a useful clinical composite score for measuring a patient's rheumatoid arthritis activity in a clinical setting. It is scored by simply adding the numerical values within each of a set of predetermined areas: a twenty eight joint assessment is used to measure tender and swollen joint count; a patient and physician global assessment of disease activity is measured using a visual analogue scale, and finally, levels of the protein C-reactive are measured (mgudl, normal <1 mgudl).

This code measures Total score in ^Patient. It belongs to the SURVEY.GNHLTH class in the LOINC classification.

LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.