N17.9
Acute kidney failure, unspecified
Clinical Classification Guidelines
Inclusion Terms
- Acute kidney injury (nontraumatic)
Excludes Type 2
- traumatic kidney injury (S37.0-)
Medical Intelligence & Overview
Acute kidney failure, also known as acute kidney injury (AKI), is a sudden decrease in kidney function that occurs over a few hours or days. When the cause or specifics of the injury are not clearly identified, it is classified under the ICD-10 code N17.9, which refers to acute kidney failure, unspecified. This condition can disrupt the body's ability to remove waste products, maintain fluid and electrolyte balance, and regulate blood pressure. Recognizing the severity of this condition highlights the importance of prompt medical attention to prevent or limit long-term kidney damage.
Causes & Symptoms
Clinical Causes: Severe dehydration or fluid loss Severe infections or sepsis Sudden blockage in urinary flow (e.g., kidney stones, enlarged prostate) Use of certain medications that harm the kidneys (e.g., NSAIDs, certain antibiotics, contrast dyes) Severe blood pressure fluctuations or shock Major trauma or injury to the kidneys Chronic conditions that worsen suddenly, like diabetes or hypertension Exposure to toxins or poisons
Key Symptoms: Sudden decrease in urine output Swelling in legs, ankles, or around the eyes Confusion or difficulty concentrating Nausea and vomiting Shortness of breath Fatigue or weakness Chest pain or pressure Irregular heartbeat High blood pressure
Diagnostic & Treatment
Diagnosis Path: Healthcare providers employ various methods to diagnose acute kidney failure, including blood tests to measure levels of waste products like creatinine and urea, urine tests to evaluate kidney output and detect abnormalities, and imaging studies such as ultrasound to visualize the kidneys. The patient's medical history and physical examinations help identify potential causes and guide treatment plans. In cases of unspecified AKI (N17.9), diagnostics focus on excluding other specific types and determining the overall impairment of kidney function.
Treatment Protocols: Treatment for acute kidney failure involves addressing the underlying cause and supporting kidney function. This may include fluid management to restore hydration, medications to control blood pressure, or removal of toxins or obstructions. In severe cases, dialysis may be necessary temporarily to filter waste products from the blood. Additionally, close monitoring of kidney function, electrolyte levels, and fluid balance is essential. Once the cause is managed, the focus shifts to preventing further kidney damage and supporting recovery.
Clinical Advice & FAQs
Billing Guidance
Is N17.9 a billable ICD-10 code?
Yes, N17.9 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report N17.9?
Clinical documentation must specify the nature of Acute kidney failure, unspecified and any associated comorbidities for accurate reporting.
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