Can a Dhamma be made up of other Dhammas?

What is Dhamma ? Dhamma is all conditioned and unconditioned phenomena. Dhamma also means different realities. Dhamma also means nature of things. Take for example body , it is made up of parts. Dhamma is the body and it is made up of six senses and other body parts like heart , kidney, intestines etc . Each part can be called a Dhamma. However I read someone saying that Dhamma can not be made up of other Dhammas. My question is : Can a Dhamma be made up of other Dhammas ?