R78
Non-billableFindings of drugs and other substances, not normally found in blood
R78 is the ICD-10-CM code for Findings of drugs and other substances, not normally found in blood. It is a non-billable category code — use a more specific child code such as R78.0 for billing.
- Status
- Header (non-billable)
- Chapter
- R00-R99
- Subcodes
- 10
- Edition
- FY2026
R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
What this means — in plain language
MedlinePlus · NIHLaboratory tests check a sample of your blood, urine, or body tissues. A technician or your doctor analyzes the test samples to see if your results fall within the normal range. The tests use a range because what is normal differs from person to person. Many factors affect test results. These include: Your sex, age and race What you eat and drink Medicines you take How well you followed pre-test instructions Your…
Read more about Laboratory Tests at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes2 — not included here
Use additional code
- •code to identify the any retained foreign body, if applicable (Z18.-)
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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