Geriatrics · Internal Medicine
Cumulative Illness Rating Scale (CIRS) calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
points
Allowed range: 0–56 points
Quick picks
Sum of organ-system severity ratings (each 0–4).
Result
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Clinical inputs
- CIRS total score (points)Accepted range: 0 to 56
Primary source
Linn BS et al. Cumulative illness rating scale. J Am Geriatr Soc. DOI: 10.1111/j.1532-5415.1968.tb02103.x. PMID: 5646906. Scope: rates severity of illness across organ systems (each 0–4) summed as a comorbidity burden index. (1968)
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