Postpolio syndrome

This code represents a neurological disorder characterized by new or worsening muscle weakness, fatigue, and pain that develops decades after an initial acute poliomyelitis infection. It is a progressive condition affecting individuals who previously recovered from paralytic polio.

Assign this code when documentation clearly indicates a diagnosis of postpolio syndrome in a patient with a history of poliomyelitis. This diagnosis is typically made based on clinical criteria, including new onset of symptoms and exclusion of other neurological conditions.

• Do not code with B91 (Sequelae of poliomyelitis) as this is an Excludes1 note.
• Ensure the medical record explicitly states "postpolio syndrome" or "postpolio myelitic syndrome."
• Code any associated symptoms (e.g., muscle weakness, fatigue, pain) separately if they are not inherent to the syndrome's definition.