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ICD-10 Coding for History of Pyelonephritis(N11.0, N11.1, Z87.440)

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

Also known as:

Chronic Kidney InfectionRecurrent Pyelonephritis

Related ICD-10 Code Ranges

Complete code families applicable to History of Pyelonephritis

N10-N16Primary Range

Renal tubulo-interstitial diseases

This range includes codes for acute and chronic pyelonephritis, as well as related renal conditions.

Personal history of diseases of the genitourinary system

This range includes codes for documenting a resolved history of pyelonephritis.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
N11.0Chronic pyelonephritis obstructive/reflux-associatedUse when there is documented chronic pyelonephritis with evidence of obstruction or reflux.
  • Documented recurrent UTIs
  • Imaging showing renal scarring or obstruction
N11.1Chronic pyelonephritis due to underlying conditionUse when chronic pyelonephritis is secondary to another condition.
  • Documentation of underlying condition like diabetes or transplant
  • Recurrent infections with renal changes
Z87.440Personal history of urinary (tract) infectionsUse when documenting a past history of pyelonephritis that is no longer active.
  • Documentation of resolved pyelonephritis with no current treatment

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for history of pyelonephritis

Essential facts and insights about History of Pyelonephritis

The ICD-10 code for a history of pyelonephritis is Z87.440, indicating a resolved condition.

Primary ICD-10-CM Codes for history of pyelonephritis

Chronic pyelonephritis obstructive/reflux-associated
Billable Code

Decision Criteria

clinical Criteria

  • Presence of recurrent infections and imaging evidence of renal changes.

Applicable To

  • Chronic pyelonephritis due to obstruction
  • Reflux nephropathy

Excludes

  • Acute pyelonephritis (N10)
  • Pyonephrosis (N13.6)

Clinical Validation Requirements

  • Documented recurrent UTIs
  • Imaging showing renal scarring or obstruction

Code-Specific Risks

  • Misclassification as acute pyelonephritis
  • Failure to document chronicity

Coding Notes

  • Ensure chronicity and structural abnormalities are well-documented.

Ancillary Codes

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

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

B96.2
Use to specify the causative organism when known.

Kidney transplant infection

T86.13
Use in cases of pyelonephritis in transplant patients.

Differential Codes

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

Acute pyelonephritis

N10
Acute onset with fever and flank pain, no chronic changes.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting History of Pyelonephritis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code N11.0.

Impact

Clinical: Misrepresentation of patient's current health status., Regulatory: Non-compliance with coding standards., Financial: Potential for denied claims.

Mitigation Strategy

Review patient history for active conditions, Ensure documentation reflects current status

Impact

Reimbursement: Incorrect sequencing can affect DRG assignment and reimbursement., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation Strategy

Code sepsis first, followed by transplant infection and pyelonephritis.

Impact

Failure to sequence codes correctly in complex cases.

Mitigation Strategy

Regular training on updated coding guidelines.

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 History of Pyelonephritis, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for History of Pyelonephritis

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

Chronic Pyelonephritis in a Diabetic Patient

Specialty: Nephrology

Required Elements

  • History of recurrent UTIs
  • Diabetes management
  • Imaging results showing renal changes

Example Documentation

Patient with chronic pyelonephritis secondary to diabetes, recurrent UTIs, and renal scarring on ultrasound.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has kidney infections.
Good Documentation Example
Patient with chronic pyelonephritis, recurrent UTIs, and renal scarring due to diabetes.
Explanation
The good example provides specificity and links to the underlying condition.

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

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