Polyneuropathy due to other toxic agents

This code signifies a generalized peripheral nerve disorder resulting from exposure to various toxic substances, excluding drugs or alcohol. It encompasses conditions where multiple peripheral nerves are damaged, leading to symptoms such as weakness, numbness, tingling, or pain, directly attributable to an external toxic agent.

Assign this code when documentation clearly links polyneuropathy to an identified toxic agent other than pharmaceuticals or alcohol. Examples include exposure to heavy metals (e.g., lead, mercury), industrial solvents, or certain pesticides. The medical record should specify the toxic agent and the resulting polyneuropathy.

• Ensure the documentation explicitly states "polyneuropathy" and identifies the specific non-drug/non-alcohol toxic agent.
• Do not use this code for polyneuropathy due to therapeutic drug use (refer to T36-T50 with fifth or sixth character 5) or alcohol (G62.1).
• Code the specific toxic agent (T51-T65) as an additional diagnosis to fully describe the etiology.