ICDwise
R79 ⚠ Non-billable

Other abnormal findings of blood chemistry

ICD-10-CM · FY2026 · Symptoms, Signs and Abnormal Clinical and Laboratory Findings

Code
R79
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Symptoms, Signs and Abnormal Clinical and Laboratory Findings
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Official coding notes

From CMS's ICD-10-CM Tabular List.

Excludes1 — never code together
  • asymptomatic hyperuricemia (E79.0)
  • 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.-)
Excludes2 — not included here, but may code together
  • hyperglycemia NOS (R73.9)
Use additional code
  • code to identify any retained foreign body, if applicable (Z18.-)

Frequently asked questions

What is ICD-10 code R79?
ICD-10-CM code R79 represents Other abnormal findings of blood chemistry. It is a non-billable header code requiring a more specific subcategory in the Symptoms, Signs and Abnormal Clinical and Laboratory Findings chapter, effective October 1, 2025 – September 30, 2026.
Is R79 billable?
No. R79 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is R79 in?
R79 belongs to the Symptoms, Signs and Abnormal Clinical and Laboratory Findings chapter (R00–R99) of ICD-10-CM.

Related codes in the R79 category

R79.0 Abnormal level of blood mineral Billable R79.1 Abnormal coagulation profile Billable R79.8 Other specified abnormal findings of blood chemistry Non-billable R79.9 Abnormal finding of blood chemistry, unspecified Billable R79.81 Abnormal blood-gas level Billable R79.82 Elevated C-reactive protein (CRP) Billable R79.83 Abnormal findings of blood amino-acid level Billable R79.89 Other specified abnormal findings of blood chemistry Billable

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