R84.3: Abnormal level of substances chiefly nonmedicinal as to source in specimens from respiratory organs and thorax
R84.3 is the billable ICD-10-CM diagnosis code for Abnormal level of substances chiefly nonmedicinal as to source in specimens from respiratory organs and thorax. 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 R84.3?
R84.3 is the ICD-10-CM diagnosis code for Abnormal level of substances chiefly nonmedicinal as to source in specimens from respiratory organs and thorax. It belongs to category R84 (Abnormal findings in specimens from respiratory organs and thorax).
Is R84.3 a billable code?
Yes. R84.3 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 R84.3 belong to?
R84.3 is part of ICD-10-CM category R84 — Abnormal findings in specimens from respiratory organs and thorax, which has 20 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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