Polish Supreme Court dismissed appeal; working during sick leave as business activity excludes sickness benefit.

The Supreme Court of Poland dismissed the cassation appeal against a lower court ruling that denied a sickness benefit. The applicant, an employee, continued performing electrical installation services during his medical leave while officially registered for a business interruption. The court held that such activities constitute 'other gainful employment' under the relevant social insurance statute, thereby legally excluding him from sickness benefits. Consequently, the lower court's factual findings and legal application were upheld, and the appeal was rejected.