N10
N10: Acute pyelonephritis
Billable / specific codeICD-10-CM
N10 is a billable, specific ICD-10-CM code for acute pyelonephritis. It is valid for submission on a claim.
Check N10 with the rest of the claim: free scrubberUse additional code
Add a secondary code to capture the detail described below.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Acute infectious interstitial nephritis
- Acute pyelitis
- Acute tubulo-interstitial nephritis
- Hemoglobin nephrosis
- Myoglobin nephrosis
Other codes that can never be billed with N10
Their own Excludes1 notes name this code, so the conflict is not listed above.
- N00Acute nephritic syndrome
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
N10 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
- Nephrosis, nephrotic›hemoglobin
- Nephrosis, nephrotic›myoglobin
- Pyelitis›acute
- Pyelonephritis›acute
- Nephritis, nephritic›tubulo-interstitial›acute(infectious)
Code history
Unchanged in every release from FY2024 to FY2027.