N10 Acute tubulo-interstitial nephritis
N11 Chronic tubulo-interstitial nephritis
N12 Tubulo-interstitial nephritis, not specified as acute or chronic
N13 Obstructive and reflux uropathy
N14 Drug-and heavy-metal-induced tubulo-interstitial and tutular conditions
N15 Other renal tubulo-interstitial diseases
N16 Renal tubulo-interstitial disorders in diseases classified elsewhere