ICD-10-CM 2027
ICD-10 code for Polioviral nonparalytic fever
From the official ICD-10-CM alphabetic index entry “Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › polioviral (nonparalytic)”. Page updated September 29, 2026.
About coding Polioviral nonparalytic fever
The ICD-10-CM code for Polioviral nonparalytic fever is A80.4 (Acute nonparalytic poliomyelitis).
Within A80 (acute poliomyelitis), A80.4 is specifically for acute nonparalytic poliomyelitis. Related codes cover paralytic poliomyelitis, vaccine-associated (A80.0), paralytic poliomyelitis, wild virus, imported (A80.1), paralytic poliomyelitis, wild virus, indigenous (A80.2), paralytic poliomyelitis, other and unspecified (A80.3) and unspecified (A80.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 865 (Viral Illness with MCC, relative weight 1.3485) and DRG 866 (Viral Illness without MCC, relative weight 0.8692), in MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Polioviral nonparalytic fever ICD-10 codes
What is the ICD-10 code for Polioviral nonparalytic fever?
- A80.4 — Acute nonparalytic poliomyelitis.
Is A80.4 billable?
- Yes. A80.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A80.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A80.4 as a principal diagnosis.
Is A80.4 a CC or MCC?
- No. A80.4 is neither a CC nor an MCC under MS-DRG v44.0.