What is the difference between CERT C secure coding standard and other coding standards?

We are updating our C, C++ and C# coding standards to include security requirements. I know there are coding standards based on the following:

1. PCI-DSS


2. CWE Top 25


3. OWASP Top 10


4. NIST SAMATE

What is the difference bet these and the CERT C secure coding standard?

Thanks