N11.8
N11.8: Other chronic tubulo-interstitial nephritis
Billable / specific codeICD-10-CM
N11.8 is a billable, specific ICD-10-CM code for other chronic tubulo-interstitial nephritis. It is valid for submission on a claim.
Check N11.8 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Nonobstructive chronic pyelonephritis NOS
Other codes that can never be billed with N11.8
Their own Excludes1 notes name this code, so the conflict is not listed above.
- N03Chronic nephritic syndrome
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
N11.8 is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A55336Billing and Coding: Retroperitoneal Ultrasound
- A56421Billing and Coding: CT of the Abdomen and Pelvis
Alphabetic index entries that lead here
- Pyelonephritis›chronic›nonobstructive
- Pyelonephritis›chronic›specified NEC
- Pyelonephritis›nonobstructive›chronic
- Nephritis, nephritic›tubulo-interstitial›chronic›nonobstructive
- Nephritis, nephritic›tubulo-interstitial›chronic›specified NEC
Code history
Unchanged in every release from FY2024 to FY2027.