In simple words: Acute poliomyelitis, also known as polio, is a contagious viral disease that can cause paralysis. This code is used when the specific type of polio isn't identified.

Acute poliomyelitis is a highly contagious viral disease that affects the nervous system, caused by the poliovirus. This classification is used when the type of acute poliomyelitis is not specified.It primarily affects children under 5 and is transmitted through the fecal-oral route. The infection can be asymptomatic or present with mild symptoms like pharyngitis and gastroenteritis. In severe cases, it can affect the nervous system causing fever, headache, neck and back stiffness, muscle aches, atrophy, and paralysis.

Example 1: A 3-year-old child presents with fever, headache, stiff neck, and muscle weakness. Lab tests confirm poliovirus infection, but the specific type is not identified. A80.9 is used., A patient presents with mild gastrointestinal symptoms and pharyngitis.Poliovirus is detected, but there is no paralysis, and the type is unspecified. A80.9 applies., A patient from a region where polio is endemic presents with neurological symptoms. Acute poliomyelitis is suspected, but further testing to determine the specific type is pending. A80.9 can be used until a definitive diagnosis is made.

Documentation should include: signs and symptoms, neurological exam findings, lab results (CSF, blood, stool), and any imaging or diagnostic studies (MRI, EMG).