Failure to adjudicate a pension claim constitutes a denial and administrative error under Polish Social Security Law.

The Supreme Court dismissed the Social Insurance Institution's appeal, ruling that ignoring a valid pension application is legally equivalent to a denial. The court found the applicant met all eligibility criteria but the agency failed to process the request, instead citing a lack of statutory grounds which the court correctly identified as grounds for a refusal decision, not inaction. Consequently, the court held that such procedural neglect constitutes an administrative error warranting the grant of the pension benefits.