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ICD-10-CM category

N11: Chronic tubulo-interstitial nephritis

4 subcodes · 4 billable · Look up any code with the ICD-10 search

Codes under N11 (Chronic tubulo-interstitial nephritis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

CodeDescriptionBillable
N11.0Nonobstructive reflux-associated chronic pyelonephritis✓
N11.1Chronic obstructive pyelonephritis✓
N11.8Other chronic tubulo-interstitial nephritis✓
N11.9Chronic tubulo-interstitial nephritis, unspecified✓

More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees

Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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