ICD-10 Code E72.548 – Other secondary hyperoxaluria (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E72.548 – Other secondary hyperoxaluria
What it is
Other secondary hyperoxaluria means excess oxalate in the body caused by an underlying acquired condition, not a primary inherited disorder. It is used when documentation identifies a secondary cause and the specific type is not otherwise classified.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include recurrent calcium oxalate kidney stones, urinary symptoms, or evidence of oxalate deposition related to an acquired cause.
When to use this code
Use this code when the provider documents secondary hyperoxaluria and does not specify a more exact category. It may apply when the condition is linked to malabsorption, bowel disease, or another acquired cause. Code the documented underlying disorder separately when instructed.
Do not use for
Do not use this code for primary hyperoxaluria or for kidney stones alone without documented hyperoxaluria. Check documentation if the record only mentions oxalate crystals or a suspected cause.
Coding tip
Confirm the chart states “secondary hyperoxaluria” and capture the associated underlying condition when it is documented.