N14: Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions

Codes under N14 (Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
N14.0	Analgesic nephropathy	✓
N14.1	Nephropathy induced by other drugs, medicaments and biological substances	—
N14.2	Nephropathy induced by unspecified drug, medicament or biological substance	✓
N14.3	Nephropathy induced by heavy metals	✓
N14.4	Toxic nephropathy, not elsewhere classified	✓
N14.11	Contrast-induced nephropathy	✓
N14.19	Nephropathy induced by other drugs, medicaments and biological substances	✓

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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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