Radiation-induced polyneuropathy

This code describes a type of peripheral neuropathy that develops as a direct consequence of radiation therapy. It involves damage to multiple peripheral nerves, leading to symptoms such as pain, numbness, weakness, and sensory disturbances in the affected areas. The neuropathy is specifically attributed to the therapeutic radiation exposure.

Use this code when documentation clearly links polyneuropathy to a history of radiation treatment, typically for cancer. This diagnosis should be supported by physician notes detailing the onset of neurological symptoms post-radiation and ruling out other causes of polyneuropathy. It is appropriate for both acute and chronic presentations of radiation-induced nerve damage.

• Ensure the medical record explicitly states "radiation-induced" or "post-radiation" polyneuropathy.
• Do not confuse with other forms of polyneuropathy (e.g., diabetic, toxic) unless radiation is the confirmed etiology.
• Sequence this code as a primary diagnosis when the polyneuropathy is the reason for the encounter, or as a secondary diagnosis when it is a co-morbidity.