2027 ICD-10-CM Diagnosis Code A80.1Acute paralytic poliomyelitis, wild virus, imported
ICD-10-CM Codes›A00–B99›A80-A89›A80
- Billable — Valid for Submission
- MCC — Major Complication or Comorbidity
- Not Chronic
A80.1 is a billable ICD-10-CM diagnosis code for acute paralytic poliomyelitis, wild virus, imported. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 23 through 24, 97 through 99. As a secondary diagnosis, it counts as a major complication or comorbidity (MCC) and places an inpatient stay in the highest severity level of its MS-DRG family. It does not count, however, when the principal diagnosis is one of 5 closely related codes. Coders also document this condition as acute paralytic poliomyelitis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified CNS infection and poliomyelitis and Viral infection.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute paralytic poliomyelitis
- Acute paralytic poliomyelitis, wild virus, imported
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to A80.1: its own notes plus those printed at A80, block A80-A89, and Chapter 1. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- diseases generally recognized as communicable or transmissible
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify resistance to antimicrobial drugs (Z16.-)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name A80.1, its category, or a range that includes it.
Excludes1 2
These codes carry an Excludes1 note naming A80.1: they are not reported together with it, unless the two conditions are unrelated.
Code First 2
These codes say to code first a condition named in the note, and A80.1 is one of the conditions named.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
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)
Patient EducationClinical
Polio and Post-Polio Syndrome
Polio, or poliomyelitis, is a disease that spreads from person to person. It is caused by the poliovirus. The virus attacks the nervous system. In serious cases, it can cause paralysis (where you can't move parts of the body). The paralysis may be lifelong and can sometimes be life-threatening.
The full article covers:
- What is polio?
- How does polio spread?
- Who is more likely to develop polio?
- What are the symptoms of polio?
- What is post-polio syndrome (PPS)?
- How is polio diagnosed?
- What are the treatments for polio and post-polio syndrome (PPS)?
- Can polio be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert A80.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About A80.1Overview
What is the ICD-10 code for acute paralytic poliomyelitis, wild virus, imported?
The ICD-10-CM code for acute paralytic poliomyelitis, wild virus, imported is A80.1 (sometimes written as A801). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is A80.1 (Acute poliomyelitis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report acute paralytic poliomyelitis, wild virus, imported on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does A80.1 group to?
When acute paralytic poliomyelitis, wild virus, imported is the principal diagnosis on an inpatient stay, it groups to MS-DRG 24, 98, 99, 23, 97, with relative weights from 1.5249 to 5.7422 depending on complications. Higher weights mean higher Medicare reimbursement.
Is A80.1 a CC or MCC?
CMS lists A80.1 as an MCC (major complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it places the inpatient stay in the highest-weighted DRG of its severity family. It does not count when the principal diagnosis is one of the 5 closely related codes in its exclusion list.
Can A80.1 be reported with G04.82?
Not as a rule. The Excludes1 note at A80, which applies to A80.1, lists "acute flaccid myelitis (G04.82)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
