Article 423. Contract For and Without Compensation.
1. A contract under which a party must receive payment or other consideration for the performance of its duties shall be deemed to be for compensation.
2. A contract under which one party is obliged to grant something to the other party without receiving payment or other consideration from it shall be deemed to be without compensation.
3. A contract shall be presupposed to be for compensation unless it follows otherwise from a law, other legal acts, or the content or essence of the contract.