Renal tubulo-interstitial diseases
44 codes in this section
About Section N10-N16
Section N10-N16 (N10-N16) covers renal tubulo-interstitial diseases. It sits within the Diseases of the genitourinary system chapter (N00-N99). This section contains 44 ICD-10-CM codes, 35 billable diagnoses you can submit on a claim, and 9 non-billable header codes used to organize the hierarchy.
Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.
Codes in N10-N16
Grouped by 3-character root code. Click any code for full detail.
| N11.0 | Nonobstructive reflux-associated chronic pyelonephritis | Billable |
| N11.1 | Chronic obstructive pyelonephritis | Billable |
| N11.8 | Other chronic tubulo-interstitial nephritis | Billable |
| N11.9 | Chronic tubulo-interstitial nephritis, unspecified | Billable |
| N13.0 | Hydronephrosis with ureteropelvic junction obstruction | Billable |
| N13.1 | Hydronephrosis with ureteral stricture, not elsewhere classified | Billable |
| N13.2 | Hydronephrosis with renal and ureteral calculous obstruction | Billable |
| N13.3 | Other and unspecified hydronephrosis | Header |
| N13.30 | Unspecified hydronephrosis | Billable |
| N13.39 | Other hydronephrosis | Billable |
| N13.4 | Hydroureter | Billable |
| N13.5 | Crossing vessel and stricture of ureter without hydronephrosis | Billable |
| N13.6 | Pyonephrosis | Billable |
| N13.7 | Vesicoureteral-reflux | Header |
| N13.70 | Vesicoureteral-reflux, unspecified | Billable |
| N13.71 | Vesicoureteral-reflux without reflux nephropathy | Billable |
| N13.72 | Vesicoureteral-reflux with reflux nephropathy without hydroureter | Header |
| N13.721 | Vesicoureteral-reflux with reflux nephropathy without hydroureter, unilateral | Billable |
| N13.722 | Vesicoureteral-reflux with reflux nephropathy without hydroureter, bilateral | Billable |
| N13.729 | Vesicoureteral-reflux with reflux nephropathy without hydroureter, unspecified | Billable |
| N13.73 | Vesicoureteral-reflux with reflux nephropathy with hydroureter | Header |
| N13.731 | Vesicoureteral-reflux with reflux nephropathy with hydroureter, unilateral | Billable |
| N13.732 | Vesicoureteral-reflux with reflux nephropathy with hydroureter, bilateral | Billable |
| N13.739 | Vesicoureteral-reflux with reflux nephropathy with hydroureter, unspecified | Billable |
| N13.8 | Other obstructive and reflux uropathy | Billable |
| N13.9 | Obstructive and reflux uropathy, unspecified | Billable |
| N14.0 | Analgesic nephropathy | Billable |
| N14.1 | Nephropathy induced by other drugs, medicaments and biological substances | Header |
| N14.11 | Contrast-induced nephropathy | Billable |
| N14.19 | Nephropathy induced by other drugs, medicaments and biological substances | Billable |
| N14.2 | Nephropathy induced by unspecified drug, medicament or biological substance | Billable |
| N14.3 | Nephropathy induced by heavy metals | Billable |
| N14.4 | Toxic nephropathy, not elsewhere classified | Billable |
| N15.0 | Balkan nephropathy | Billable |
| N15.1 | Renal and perinephric abscess | Billable |
| N15.8 | Other specified renal tubulo-interstitial diseases | Billable |
| N15.9 | Renal tubulo-interstitial disease, unspecified | Billable |
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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