N10-N16 — Renal tubulo-interstitial diseases
ICD-10-CM codes N10-N16 cover renal tubulo-interstitial diseases, within diseases of the genitourinary system. The block holds 44 codes across 7 categories, of which 35 are billable and 9 are header codes that cannot be submitted on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- pyeloureteritis cystica (N28.85)
Includes
Conditions this code covers.
- pyelonephritis
What else to watch in N10-N16
- 35 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.
Categories in N10-N16
- N10Acute pyelonephritis
- N11Chronic tubulo-interstitial nephritis
- N12Tubulo-interstitial nephritis, not specified as acute or chronic
- N13Obstructive and reflux uropathy
- N14Drug- and heavy-metal-induced tubulo-interstitial and tubular conditions
- N15Other renal tubulo-interstitial diseases
- N16Renal tubulo-interstitial disorders in diseases classified elsewhere