R79
Non-billableOther abnormal findings of blood chemistry
R79 is the ICD-10-CM code for Other abnormal findings of blood chemistry. It is a non-billable category code — use a more specific child code such as R79.0 for billing.
- Status
- Header (non-billable)
- Chapter
- R00-R99
- Subcodes
- 4
- Edition
- FY2026
R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
What this means — in plain language
MedlinePlus · NIHYour blood is made up of liquid and solids. The liquid part, called plasma, is made of water, salts, and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells, and platelets. Red blood cells (RBC) deliver oxygen from your lungs to your tissues and organs. White blood cells (WBC) fight infection and are part of your immune system. Platelets help blood to…
Read more about Blood at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
- •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.-)
Use additional code
- •code to identify any retained foreign body, if applicable (Z18.-)
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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