N17.8
BillableOther acute kidney failure
HCC Category Mapping
V24HCC 135 — Acute Renal Failure
0.452ESRDHCC 135 — Acute Renal Failure
0.000What This Code Means
A sudden loss of kidney function due to causes other than the more common types. This is a serious condition requiring urgent medical care.
Coding Tips
- •Use this code only when the acute kidney failure doesn't fit into other specified categories (N17.0, N17.1, N17.2); always attempt to identify the specific cause if documented
- •Review clinical notes for the underlying etiology such as rhabdomyolysis, contrast-induced nephropathy, or other specific triggers
Clinical Significance
Other acute kidney failure encompasses severe acute renal dysfunction not classified under more specific categories, representing critical illness requiring immediate intervention. This diagnosis captures acute kidney injury variants that still carry significant morbidity and healthcare resource implications.
Documentation Requirements
- ✓Acute onset of kidney failure clearly documented
- ✓Specific type or cause documented that doesn't fit other N17 categories
- ✓Laboratory evidence of acute kidney function deterioration
- ✓Clinical presentation supporting acute rather than chronic process
- ✓Treatment interventions and response documented
- ✓Underlying etiology or precipitating factors identified
- ✓Assessment of need for renal replacement therapy
Commonly Confused Codes
N17.9 — Acute kidney failure, unspecified (when specific type is not documented)N17.1 — Acute kidney failure with cortical necrosis (specific necrosis type)N17.2 — Acute kidney failure with medullary necrosis (specific necrosis type)N19 — Unspecified kidney failure (when acute vs chronic is unclear)