A80.4

What This Code Means

This is a viral infection caused by poliovirus that affects the nervous system but does not cause paralysis. The patient experiences symptoms like fever, muscle pain, and stiffness but maintains normal muscle function and movement.

Coding Tips

• •Verify the clinical documentation confirms nonparalytic presentation; if paralysis develops, use A80.3 instead
• •This code requires a 6th character to specify the poliovirus type (1, 2, or 3) - ensure complete code assignment (e.g., A80.41, A80.42, A80.43)