Article 423. Charged and gratuitous contracts.
1. An agreement under which a party must receive payment or another consideration for the performance of its duties is paid. 2. A contract is recognized as gratuitous, according to which one party undertakes to provide something to the other party without receiving payment or other consideration from it. 3. The contract is assumed to be compensated, unless the law, other legal acts, content or substance of the contract otherwise.
Links to other articles of chapter 27. The concept and terms of the contract: