A80.9 Acute poliomyelitis, unspecified
Billable ICD-10-CM code, FY2026.
Applies from A80 Acute poliomyelitis
Excludes1 (never code together)
- acute flaccid myelitis (G04.82)
MS-DRG index
Defines the logic of DRG(s) 023-024 in MDC 01.
Approximate ICD-9-CM (GEMs)
045.90 Acute poliomyelitis, unspecified, poliovirus, unspecified type (approximate)
Code annotations containing back-references to A80.9
Back-references to A80
- Type 1 Excludes:
A85 Other viral encephalitis, not elsewhere classified ("encephalitis due to poliomyelitis virus (A80.-)") - Type 1 Excludes:
A87 Viral meningitis ("meningitis due to poliomyelitis virus (A80.-)") - Code First:
G02 Meningitis in other infectious and parasitic diseases classified elsewhere ("poliovirus infection (A80.-)") - Code First:
G05 Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere ("poliovirus (A80.-)")
Diagnosis Index entries for A80.9
- Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) › in (due to) › poliovirus
- Heine-Medin disease
- Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) › in (due to) › poliovirus
- Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) › poliovirus
- Polioencephalitis (acute) (bulbar)
- Polioencephalomyelitis (acute) (anterior)
- Poliomyelitis (acute) (anterior) (epidemic)
- Poliomyelitis (acute) (anterior) (epidemic) › nonepidemic
- Poliomyelitis (acute) (anterior) (epidemic) › spinal, acute
Nearby codes
A80.2 Acute paralytic poliomyelitis, wild virus, indigenousA80.3 Acute paralytic poliomyelitis, other and unspecifiedA80.30 Acute paralytic poliomyelitis, unspecifiedA80.39 Other acute paralytic poliomyelitisA80.4 Acute nonparalytic poliomyelitisA80.9 Acute poliomyelitis, unspecified (this code)