ICD-10-CM Code A80.9

Acute poliomyelitis, unspecified

Version 2020 Billable Code

Valid for Submission

A80.9 is a billable code used to specify a medical diagnosis of acute poliomyelitis, unspecified. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code A80.9 might also be used to specify conditions or terms like acute poliomyelitis, acute poliomyelitis due to human poliovirus 1, anterior acute poliomyelitis, enterovirus meningitis, epidemic acute poliomyelitis, infection caused by human poliovirus, etc

Short Description:Acute poliomyelitis, unspecified
Long Description:Acute poliomyelitis, unspecified

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code A80.9 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acute poliomyelitis
  • Acute poliomyelitis due to Human poliovirus 1
  • Anterior acute poliomyelitis
  • Enterovirus meningitis
  • Epidemic acute poliomyelitis
  • Infection caused by Human poliovirus
  • Meningitis caused by Human poliovirus
  • Neuromuscular scoliosis
  • Neuromuscular scoliosis due to poliomyelitis
  • Polioencephalitis
  • Polioencephalopathy

Clinical Information

  • POLIOMYELITIS-. an acute infectious disease of humans particularly children caused by any of three serotypes of human poliovirus poliovirus. usually the infection is limited to the gastrointestinal tract and nasopharynx and is often asymptomatic. the central nervous system primarily the spinal cord may be affected leading to rapidly progressive paralysis coarse fasciculation and hyporeflexia. motor neurons are primarily affected. encephalitis may also occur. the virus replicates in the nervous system and may cause significant neuronal loss most notably in the spinal cord. a rare related condition nonpoliovirus poliomyelitis may result from infections with nonpoliovirus enteroviruses. from adams et al. principles of neurology 6th ed pp764 5

Convert A80.9 to ICD-9

  • 045.90 - Ac polio NOS-type NOS (Approximate Flag)

Code Classification

  • Certain infectious and parasitic diseases (A00–B99)
    • Viral and prion infections of the central nervous system (A80-A89)
      • Acute poliomyelitis (A80)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Polio and Post-Polio Syndrome

Polio is an infectious disease caused by a virus. The virus lives in an infected person's throat and intestines. It is most often spread by contact with the stool of an infected person. You can also get it from droplets if an infected person sneezes or coughs. It can contaminate food and water if people do not wash their hands.

Most people have no symptoms. If you have symptoms, they may include fever, fatigue, nausea, headache, flu-like symptoms, stiff neck and back, and pain in the limbs. A few people will become paralyzed. There is no treatment to reverse the paralysis of polio.

Some people who've had polio develop post-polio syndrome (PPS) years later. Symptoms include tiredness, new muscle weakness, and muscle and joint pain. There is no way to prevent or cure PPS.

The polio vaccine has wiped out polio in the United States and most other countries.

Centers for Disease Control and Prevention

[Learn More]