ICD-10 Code A80.3 – Acute paralytic poliomyelitis, other and unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A80.3 – Acute paralytic poliomyelitis, other and unspecified
What it is
A80.3 identifies acute paralytic poliomyelitis when the paralysis is documented but the specific type is not otherwise classified. Use it for confirmed poliovirus infection with acute flaccid paralysis.
Clinical signs
Typical findings include sudden weakness, flaccid paralysis, and reduced or absent reflexes. Clinical features vary; refer to documentation for neurologic involvement and whether the illness is acute and paralytic.
When to use this code
Use this code when the record states acute paralytic poliomyelitis and does not specify another subcategory. It fits cases with documented poliovirus-associated paralysis, including unspecified or other forms not named elsewhere. Check documentation if the chart only says poliomyelitis without paralysis.
Do not use for
Do not use it for nonparalytic poliomyelitis or for a history of polio without current disease. If the provider documents a different poliomyelitis type, code that more specific diagnosis instead.
Coding tip
Assign A80.3 only when the provider clearly documents acute paralysis; otherwise, query for specificity.