The Columbia Suicide Severity Rating Scale, or C-SSRS, is a suicidal ideation rating scale created by researchers at Columbia University.[1] It rates an individual's degree of suicidal ideation on a scale, ranging from "wish to be dead" to "active suicidal ideation with specific plan and intent."
The scale identifies behaviors, which may be indicative of an individual's intent to commit suicide. An individual exhibiting even a single behavior identified by the scale was 8 to 10 times more likely to commit suicide.[2][3]