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R79.8

⚠ Non-billable (Header)

Other specified abnormal findings of blood chemistry

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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❌ Excludes1

inherited from R79

Rules from parent category R79: Other abnormal findings of blood chemistry

  • • asymptomatic hyperuricemia (E79.0)
  • • hyperglycemia NOS (R73.9)
  • • hypoglycemia NOS (E16.2)
  • • neonatal hypoglycemia (P70.3-P70.4)
  • • specific findings indicating disorder of amino-acid metabolism (E70-E72)
  • • specific findings indicating disorder of carbohydrate metabolism (E73-E74)
  • • specific findings indicating disorder of lipid metabolism (E75.-)

📋 Code Instructions

from R79
  • • code to identify any retained foreign body, if applicable (Z18.-)

Child Codes (4)

R79.81Abnormal blood-gas levelR79.82Elevated C-reactive protein (CRP)R79.83Abnormal findings of blood amino-acid levelR79.89Other specified abnormal findings of blood chemistry

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Code Information

CodeR79.8
BillableNo — Header code
ParentR79
CategorySymptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Excludes17 rule(s)
Excludes20 note(s)
Child codes4

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)