ICD10Check
CheckerBrowseOpen

R79

⚠ Non-billable (Header)

Other 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.

Check This Code

📋 Code Instructions

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

❌ Excludes1

direct

Cannot be coded with R79

  • • 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.-)

Child Codes (4)

R79.0Abnormal level of blood mineralR79.1Abnormal coagulation profileR79.8Other specified abnormal findings of blood chemistryR79.9Abnormal finding of blood chemistry, unspecified

🧪 Validate Combinations

Add R79 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeR79
BillableNo — Header code
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)