R78.89
✓ BillableFinding of other specified substances, not normally found in blood
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Also Known As
Finding of abnormal level of lithium in blood
✅ No additional coding notes for R78.89
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CodeR78.89
BillableYes
ParentR78.8
CategorySymptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Excludes10 rule(s)
Excludes20 note(s)
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)