A88

Non-billable

Other viral infections of central nervous system, not elsewhere classified

A88 is the ICD-10-CM code for Other viral infections of central nervous system, not elsewhere classified. It is a non-billable category code — use a more specific child code such as A88.0 for billing.

Status
Header (non-billable)
Chapter
A00-B99
Subcodes
3
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

What this means — in plain language

MedlinePlus · NIH

The brain, spinal cord, and nerves make up the nervous system. Together they control all the workings of the body. When something goes wrong with a part of your nervous system, you can have trouble moving, speaking, swallowing, breathing, or learning. You can also have problems with your memory, senses, or mood. There are more than 600 neurologic diseases. Major types include: Diseases caused by faulty genes, such…

Read more about Neurologic Diseases at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • viral encephalitis NOS (A86)
  • viral meningitis NOS (A87.9)

Conditions mapped to this code

MedlinePlus · NIH

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Frequently asked questions

What is ICD-10 code A88?
A88 is the ICD-10-CM code for "Other viral infections of central nervous system, not elsewhere classified". It falls under A00-B99 Certain infectious and parasitic diseases.
Is A88 a billable code?
No — A88 is a non-billable header code. Use a more specific child code (such as A88.0) for billing.
What are the subcodes of A88?
A88 has 3 more specific child codes, including A88.0, A88.1, A88.8.
What is excluded from A88?
Excludes1 (not coded here): viral encephalitis NOS (A86); viral meningitis NOS (A87.9).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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