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R78.8

⚠ Non-billable (Header)

Finding of other specified 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.

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⚠️ Excludes2

inherited from R78

Rules from parent category R78: Findings of drugs and other substances, not normally found in blood

  • • mental or behavioral disorders due to psychoactive substance use (F10-F19)

📋 Code Instructions

from R78
  • • code to identify the any retained foreign body, if applicable (Z18.-)

Child Codes (2)

R78.81BacteremiaR78.89Finding of other specified substances, not normally found in blood

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Code Information

CodeR78.8
BillableNo — Header code
ParentR78
CategorySymptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Excludes10 rule(s)
Excludes21 note(s)
Child codes2

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)