Drug-induced polyneuropathy

This code represents a generalized peripheral neuropathy that develops as an adverse effect of a medication. It involves damage to multiple peripheral nerves, leading to symptoms such as sensory disturbances, motor weakness, and autonomic dysfunction, directly attributable to drug exposure.

Use this code when documentation clearly links the development of polyneuropathy to the administration of a specific drug. This diagnosis is appropriate for patients experiencing new-onset or worsening peripheral nerve symptoms following drug therapy, where other causes of polyneuropathy have been ruled out. Documentation should specify the offending drug if known.

• Always sequence this code first if it is the primary reason for the encounter.
• Code the specific adverse effect (polyneuropathy) first, followed by the T-code for the adverse effect of the drug, if known.
• Ensure documentation explicitly states the drug causing the polyneuropathy; avoid using this code for idiopathic or other specified types of polyneuropathy.