R78
⚠ Non-billable (Header)Findings of drugs and other substances, not normally found in blood
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
📋 Code Instructions
- • code to identify the any retained foreign body, if applicable (Z18.-)
⚠️ Excludes2
directMay be coded together if both conditions coexist
- • mental or behavioral disorders due to psychoactive substance use (F10-F19)
Child Codes (10)
R78.0Finding of alcohol in bloodR78.1Finding of opiate drug in bloodR78.2Finding of cocaine in bloodR78.3Finding of hallucinogen in bloodR78.4Finding of other drugs of addictive potential in bloodR78.5Finding of other psychotropic drug in bloodR78.6Finding of steroid agent in bloodR78.7Finding of abnormal level of heavy metals in bloodR78.8Finding of other specified substances, not normally found in bloodR78.9Finding of unspecified substance, not normally found in blood
🧪 Validate Combinations
Add R78 to the Excludes Checker to validate against your full code list.
Open in Checker →Code Information
CodeR78
BillableNo — Header code
CategorySymptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Excludes10 rule(s)
Excludes21 note(s)
Child codes10
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)