A brachial plexus disorder characterized by regional paresthesia, pain and muscle weakness, and limited movement in the arm or hand. The disease is brachial plexus neuropathy (Monarch Disease Ontology id MONDO_0006683). Also known as: brachial nerve plexus peripheral neuropathy, brachial plexopathy, brachial plexus disorder, peripheral neuropathy of brachial nerve plexus.