ICD-10 code for Polioencephalitis

The ICD-10-CM code for Polioencephalitis is A80.9 (Acute poliomyelitis, unspecified). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on A80.9.

Within A80, choose A80.9 (unspecified) only when documentation doesn't support a more specific option: 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 nonparalytic poliomyelitis (A80.4).

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 023 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator, relative weight 5.7444), DRG 024 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC, relative weight 3.9708), DRG 097 (Non-Bacterial Infection of Nervous System Except Viral Meningitis with MCC, relative weight 3.8226), DRG 098 (Non-Bacterial Infection of Nervous System Except Viral Meningitis with CC, relative weight 2.2706) and DRG 099 (Non-Bacterial Infection of Nervous System Except Viral Meningitis without CC/MCC, relative weight 1.5256), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.