Clinical diagnostic categories routinely use required symptoms plus an m-of-n sufficiency rule.

Evidence

While I have not made a systematic analysis, it is very normal in the DSM for a disease to have a certain number of required symptoms and then have an m-of-n rule for determining the sufficiency threshold for the mental disorder. — Gary Goertz, Social Science Concepts and Measurement, 1063

Categorization

• ADDENDUM: Directly feeds the reader’s interest in how classificatory criteria are operationalized institutionally, as with DSM/hygiene-campaign style administrative schemes.