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ICD-10 Coding for Acute Pyelonephritis(N10)

Complete ICD-10-CM coding and documentation guide for Acute Pyelonephritis. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Kidney InfectionAcute Kidney Infection

Related ICD-10 Code Ranges

Complete code families applicable to Acute Pyelonephritis

N10-N16Primary Range

Renal tubulo-interstitial diseases

This range includes acute pyelonephritis and related kidney infections.

Bacterial and viral infectious agents

These codes are used to identify the infectious agent causing the condition.

Key Information: ICD-10 code for acute pyelonephritis

Essential facts and insights about Acute Pyelonephritis

The ICD-10 code for acute pyelonephritis is N10, used for confirmed cases with symptoms like fever and flank pain.

Primary ICD-10-CM Code for acute pyelonephritis

Acute pyelonephritis
Billable Code

Decision Criteria

clinical Criteria

  • Presence of fever and flank pain with positive urine culture.

documentation Criteria

  • Specify 'acute' and laterality if applicable.

Applicable To

  • Acute pyelitis
  • Acute pyelonephritis

Excludes

  • Chronic pyelonephritis (N11.-)
  • Pyonephrosis (N13.6)

Clinical Validation Requirements

  • Fever ≥38.3°C
  • Flank or CVA tenderness
  • Pyuria or positive urine culture

Code-Specific Risks

  • Ensure documentation specifies 'acute' to avoid misclassification.

Coding Notes

  • Ensure to document the presence of systemic symptoms and specific organism if identified.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Unspecified Escherichia coli [E. coli] as the cause of diseases classified elsewhere

B96.20
Use when E. coli is identified as the causative organism.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Acute cystitis without hematuria

N30.00
Absence of systemic symptoms like fever and flank pain.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Acute Pyelonephritis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code N10.

Impact

Clinical: May lead to inappropriate treatment choices., Regulatory: Non-compliance with coding guidelines., Financial: Potential for reduced reimbursement.

Mitigation Strategy

Always document culture results., Include infectious agent code when applicable.

Impact

Reimbursement: Incorrect coding can lead to lower reimbursement rates., Compliance: May result in non-compliance with coding guidelines., Data Quality: Affects the accuracy of clinical data.

Mitigation Strategy

Query provider to confirm if the condition is acute or chronic.

Impact

Failure to sequence sepsis before pyelonephritis can lead to audit findings.

Mitigation Strategy

Ensure documentation supports the primary diagnosis and sequence codes accordingly.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Acute Pyelonephritis, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Acute Pyelonephritis

Use these documentation templates to ensure complete and accurate documentation for Acute Pyelonephritis. These templates include all required elements for proper coding and billing.

Emergency Department Visit

Specialty: Emergency Medicine

Required Elements

  • Patient demographics
  • Chief complaint
  • History of present illness
  • Physical examination findings
  • Laboratory and imaging results
  • Final diagnosis
  • Treatment plan

Example Documentation

45F with sudden-onset right flank pain, fever 39.2°C, nausea. CVA tenderness on palpation. Urinalysis: 50 WBC/hpf, nitrite+. CT shows right perinephric fat stranding. Final Dx: Acute pyelonephritis (right), E. coli confirmed via urine culture. Plan: IV ceftriaxone.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has kidney infection. Start antibiotics.
Good Documentation Example
Acute pyelonephritis with left CVA tenderness, fever 39°C, leukocytosis (WBC 15,000/µL), E. coli in urine culture.
Explanation
The good example provides specific clinical findings and identifies the causative organism.

Need help with ICD-10 coding for Acute Pyelonephritis? Ask your questions below.

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