What is the ICD-10 code for acute on chronic renal failure?

The ICD-10 code for acute on chronic renal failure typically involves N17.9 for acute kidney failure and an N18.x code for the chronic kidney disease stage.

How do you document acute on chronic renal failure?

Document acute on chronic renal failure by specifying baseline and current creatinine levels, urine output, and CKD stage. Include the term 'acute on chronic renal failure' in clinical notes.

ICD-10 Coding for Acute on Chronic Renal Failure(N17.9, N18.3, N18.4)

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Learn about ICD-10 coding for acute on chronic renal failure, including documentation requirements, code relationships, and clinical validation criteria.

Also known as:

Acute on Chronic Kidney FailureAcute Kidney Injury on Chronic Kidney Disease

Related ICD-10 Code Ranges

Complete code families applicable to Acute on Chronic Renal Failure

N00-N99Primary Range

Diseases of the genitourinary system

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
N17.9	Acute kidney failure, unspecified	Use when acute kidney injury is the primary focus of treatment and no specific cause is identified.	Increase in serum creatinine by ≥0.3 mg/dL within 48 hours Increase in serum creatinine to ≥1.5 times baseline within 7 days Urine output <0.5 mL/kg/hr for 6 hours
N18.3	Chronic kidney disease, stage 3	Use when CKD stage 3 is documented alongside acute kidney injury.	GFR 30-59 mL/min/1.73 m² for more than 3 months

Primary ICD-10-CM Codes

Acute kidney failure, unspecified

N17.9Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Chronic kidney disease, unspecifiedN18.9

Chronic kidney disease, stage 4N18.4

Documentation & Coding Risks

Avoid these common issues when documenting Acute on Chronic Renal Failure.

Failure to document CKD stage.

Impact

Clinical: Inaccurate representation of patient's chronic condition., Regulatory: Non-compliance with ICD-10 coding guidelines., Financial: Potential loss of reimbursement for CKD management.

Mitigation

Ensure CKD stage is included in every relevant clinical note., Educate providers on the importance of CKD staging.

Using unspecified codes when specific codes are available.

Impact

Reimbursement: May lead to reduced reimbursement due to lack of specificity., Compliance: Non-compliance with coding guidelines., Data Quality: Poor data quality affecting clinical decision-making.

Mitigation

Ensure documentation supports the use of specific codes like N17.9 and N18.x.

Documentation of CKD stage

Impact

Failure to document CKD stage can lead to audit flags.

Mitigation

Implement regular documentation audits and provider education.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with N17.9.

Primary Code

N17.9

Acute kidney failure, unspecified

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ICD-10 Coding for Acute on Chronic Renal Failure(N17.9, N18.3, N18.4)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for acute on chronic renal failure?

How do you document acute on chronic renal failure?

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