ICD-10-CM
ICD-10 code for Meningoencephalitis parasitic NEC: B89
The ICD-10-CM index points "Meningoencephalitis parasitic NEC" to B89, Unspecified parasitic disease. B89 is a billable code. The index also gives G05.3 (Encephalitis and encephalomyelitis in diseases classified elsewhere) for the manifestation, the problem the disease causes. Report B89 first, then G05.3.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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Questions
What is the ICD-10 code for Meningoencephalitis parasitic NEC?
The ICD-10-CM index points "Meningoencephalitis parasitic NEC" to B89, Unspecified parasitic disease. B89 is a billable code. The index also gives G05.3 (Encephalitis and encephalomyelitis in diseases classified elsewhere) for the manifestation, the problem the disease causes. Report B89 first, then G05.3.
Is B89 billable?
Yes. B89 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What chapter is B89 in?
Chapter 1. Certain infectious and parasitic diseases.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.