R83.8: Other abnormal findings in cerebrospinal fluid
R83.8 is the billable ICD-10-CM diagnosis code for Other abnormal findings in cerebrospinal fluid. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code R83.8?
R83.8 is the ICD-10-CM diagnosis code for Other abnormal findings in cerebrospinal fluid. It belongs to category R83 (Abnormal findings in cerebrospinal fluid).
Is R83.8 a billable code?
Yes. R83.8 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does R83.8 belong to?
R83.8 is part of ICD-10-CM category R83 — Abnormal findings in cerebrospinal fluid, which has 18 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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