N28.84: Pyelitis cystica
N28.84 is the billable ICD-10-CM diagnosis code for Pyelitis cystica. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code N28.84?
N28.84 is the ICD-10-CM diagnosis code for Pyelitis cystica. It belongs to category N28 (Other disorders of kidney and ureter, not elsewhere classified).
Is N28.84 a billable code?
Yes. N28.84 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does N28.84 belong to?
N28.84 is part of ICD-10-CM category N28 — Other disorders of kidney and ureter, not elsewhere classified, which has 20 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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