R78
⚠ Non-billable
Findings of drugs and other substances, not normally found in blood
ICD-10-CM · FY2026 · Symptoms, Signs and Abnormal Clinical and Laboratory Findings
Code
R78
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Symptoms, Signs and Abnormal Clinical and Laboratory Findings
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code R78?
ICD-10-CM code R78 represents Findings of drugs and other substances, not normally found in blood. It is a non-billable header code requiring a more specific subcategory in the Symptoms, Signs and Abnormal Clinical and Laboratory Findings chapter, effective October 1, 2025 – September 30, 2026.
Is R78 billable?
No. R78 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is R78 in?
R78 belongs to the Symptoms, Signs and Abnormal Clinical and Laboratory Findings chapter (R00–R99) of ICD-10-CM.
Related codes in the R78 category
R78.0
Finding of alcohol in blood
Billable
R78.1
Finding of opiate drug in blood
Billable
R78.2
Finding of cocaine in blood
Billable
R78.3
Finding of hallucinogen in blood
Billable
R78.4
Finding of other drugs of addictive potential in blood
Billable
R78.5
Finding of other psychotropic drug in blood
Billable
R78.6
Finding of steroid agent in blood
Billable
R78.7
Finding of abnormal level of heavy metals in blood
Non-billable
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