R78.89: Finding of other specified substances, not normally found in blood
R78.89 is the billable ICD-10-CM diagnosis code for Finding of other specified substances, not normally found in blood. 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 R78.89?
R78.89 is the ICD-10-CM diagnosis code for Finding of other specified substances, not normally found in blood. It belongs to category R78 (Findings of drugs and other substances, not normally found in blood).
Is R78.89 a billable code?
Yes. R78.89 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 R78.89 belong to?
R78.89 is part of ICD-10-CM category R78 — Findings of drugs and other substances, not normally found in blood, which has 25 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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