Unspecified mononeuropathy of right upper limb

This code signifies a mononeuropathy affecting a single nerve in the right upper extremity, where the specific nerve involved is not documented. It indicates nerve dysfunction in the arm, forearm, or hand without further diagnostic specificity.

Apply this code when documentation clearly states "mononeuropathy of the right upper limb" but does not specify the particular nerve (e.g., median, ulnar, radial). This is appropriate when diagnostic workup is incomplete or the specific nerve lesion cannot be definitively identified.

• Avoid using this code if a more specific nerve is identified (e.g., carpal tunnel syndrome, ulnar nerve entrapment).
• Always query the provider for greater specificity if possible, as a more precise code will improve data accuracy.
• Consider laterality carefully; this code is specific to the right upper limb.