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ICD-10-CM Codes N00-N99 N10-N16 N10

2025 Acute Pyelonephritis ICD 10 Code N10

Acute pyelonephritis

Effective Date: 10/01/2015 To 09/30/2025
Go Back to Chapter - N00-N99 | Section - N10-N16 Go back

Applicable To for N10:

  • Acute infectious interstitial nephritis

  • Acute pyelitis

  • Acute tubulo-interstitial nephritis

  • Hemoglobin nephrosis

  • Myoglobin nephrosis

Use Additional for N10:

  • code (B95-B97), to identify infectious agent.

Codes Hierarchy:

    • N10  Acute pyelonephritis

    • What is Acute Pyelonephritis?

    Acute pyelonephritis ICD 10 (N10) is a type of the sudden and severe kidney infection causing the kidneys to swell and potentially leading to permanent damage. It can be life-threatening for some patients if not treated promptly. Pyelonephritis is one of the very common kidney infections that can be sudden and severe acute infection.

    Why is Acute Pyelonephritis Happening?

    The infection typically begins in the lower urinary tract as a urinary tract infection (UTI). Bacteria enter the body through the urethra, where they multiply and spread to the bladder. From the bladder, the bacteria can enter the ureters to the kidneys.

    Treatment Options for Acute Pyelonephritis ICD 10

    • Medications:

      Antibiotics such as levofloxacin, ciprofloxacin, co-trimoxazole, and ampicillin.

    • Hospital Admission:

      For severe kidney infections requiring intravenous (IV) fluids and antibiotics.

    • Surgery:

      For recurrent kidney infections due to underlying medical problems.

    Diagnostics for Acute Pyelonephritis ICD 10

    • Urine Tests

    • Imaging Tests:

      Ultrasound to detect cysts, tumors, or other obstructions.

    • Radioactive Imaging

    Symptoms for Acute Pyelonephritis ICD 10

    It doesn’t show up immediately. The symptoms usually appear within two days of infection and include:

    • Fever greater than 102°F (38.9°C)
    • Pain in the abdomen, back, side, or groin
    • Painful or burning urination
    • Cloudy urine
    • Pus or blood in the urine
    • Urgent or frequent urination
    • Fishy-smelling urine