ICD-10 Code: G56.21 – Lesion of ulnar nerve, right upper limb

ICD-10 code G56.21 corresponds to Lesion of ulnar nerve, right upper limb. This code is classified under the chapter G56 Mononeuropathies of upper limb, which is part of the G50-G59: Nerve, nerve root and plexus disorders category.

The parent chapter is Diseases of the nervous system.