Other specified polyneuropathies

This code signifies a peripheral nervous system disorder affecting multiple nerves throughout the body, where the specific type of polyneuropathy is known but does not have a more precise ICD-10-CM code. It encompasses conditions that are not inflammatory, hereditary, toxic, or otherwise classified by more specific codes.

Use this code when documentation clearly states a diagnosis of polyneuropathy, and the physician specifies a particular type that falls outside of the more common or specifically coded categories (e.g., "polyneuropathy due to chronic liver disease" if no specific code exists for that etiology). Supporting documentation must detail the specific nature of the polyneuropathy.

• Always seek a more specific code if available; this is a "specified NEC" code.
• Ensure the documentation clearly identifies the specific type of polyneuropathy to justify using this code over an unspecified code (G62.9).
• Code any underlying conditions causing the polyneuropathy first, if applicable, following ICD-10-CM sequencing guidelines.