ICD-10 Code E87.79 – Other fluid overload (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E87.79 – Other fluid overload
What it is
Use this code for fluid excess in the body that does not fit a more specific diagnosis. It generally reflects abnormal retention of water or fluid, often documented as overload.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see swelling, weight gain, or signs of volume excess noted by the clinician, but the record should support the diagnosis.
When to use this code
Assign E87.79 when the provider documents other fluid overload and no more specific fluid or electrolyte disorder applies. Use it for nonspecific volume excess, especially when the chart does not support a different coded condition. Check documentation if the cause is unclear.
Do not use for
Do not use this code for edema alone, dehydration, or specific electrolyte disorders. If the record identifies a more specific fluid imbalance or another primary condition, code that instead.
Coding tip
Confirm the provider’s wording and avoid assuming fluid overload from nonspecific swelling alone.