A85.0

A85.0: Enteroviral encephalitis

Billable / specific codeICD-10-CM

A85.0 is a billable, specific ICD-10-CM code for enteroviral encephalitis. It is valid for submission on a claim.

Check A85.0 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Enteroviral encephalomyelitis

Excludes1 inherited from the categories above A85.0

A category’s note binds every code beneath it.

Written on A85: Other viral encephalitis, not elsewhere classified

encephalitis due to cytomegalovirus (B25.8)
encephalitis due to herpesvirus NEC (B10.0-)
encephalitis due to herpesvirus [herpes simplex] (B00.4)
encephalitis due to measles virus (B05.0)
encephalitis due to mumps virus (B26.2)
encephalitis due to poliomyelitis virus (A80.-)
encephalitis due to zoster (B02.0)
lymphocytic choriomeningitis (A87.2)
myalgic encephalomyelitis (G93.32)

Other codes that can never be billed with A85.0

Their own Excludes1 notes name this code, so the conflict is not listed above.

G05Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

A85.0 is named in 8 Medicare coverage policies: 8 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A56612Billing and Coding: CT of the Head
A56771Billing and Coding: Special Electroencephalography
A57204Billing and Coding: MRI and CT Scans of the Head and Neck
A57206Billing and Coding: Lumbar MRI

Alphabetic index entries that lead here

Encephalitis›in›enterovirus

Code history

Unchanged in every release from FY2024 to FY2027.