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ICD-10 Guide
ICD-10 CodesN06.29

N06.29

Billable

Other isolated proteinuria with diffuse membranous glomerulonephritis

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/18/2025

Code Description

ICD-10 N06.29 is a billable code used to indicate a diagnosis of other isolated proteinuria with diffuse membranous glomerulonephritis.

Key Diagnostic Point:

N06.29 refers to a condition characterized by the presence of isolated proteinuria, which is the excretion of excess protein in the urine, in conjunction with diffuse membranous glomerulonephritis. This condition can arise from various underlying causes, including autoimmune diseases, infections, and certain medications. Membranous glomerulonephritis is a specific type of kidney disorder where the glomeruli, the filtering units of the kidneys, become inflamed and thickened due to the deposition of immune complexes. Isolated proteinuria indicates that the proteinuria is not accompanied by other significant renal dysfunction, such as hematuria or reduced kidney function. The diagnosis often requires a thorough clinical evaluation, including laboratory tests to assess kidney function and the presence of specific antibodies. Genetic testing may be considered in cases where hereditary nephropathy is suspected, particularly in younger patients or those with a family history of kidney disease. Accurate coding of this condition is essential for appropriate management and treatment planning.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between types of glomerulonephritis
  • Identifying underlying causes of proteinuria
  • Need for comprehensive patient history and lab results
  • Potential for overlapping symptoms with other renal conditions

Audit Risk Factors

  • Inadequate documentation of proteinuria severity
  • Failure to document underlying causes or associated conditions
  • Misclassification of glomerulonephritis type
  • Lack of genetic testing documentation when indicated

Specialty Focus

Medical Specialties

Nephrology

Documentation Requirements

Detailed lab results, patient history, and clinical findings related to kidney function.

Common Clinical Scenarios

Patients presenting with unexplained proteinuria, follow-up of known glomerulonephritis, and evaluation of hereditary nephropathies.

Billing Considerations

Ensure comprehensive documentation of all renal function tests and any genetic testing performed.

Genetics

Documentation Requirements

Family history, genetic test results, and clinical findings related to hereditary conditions.

Common Clinical Scenarios

Evaluation of patients with a family history of kidney disease and isolated proteinuria.

Billing Considerations

Document the rationale for genetic testing and any findings that may influence treatment.

Coding Guidelines

Inclusion Criteria

Use N06.29 When
  • According to ICD
  • 10 guidelines, N06
  • 29 should be used when isolated proteinuria is documented alongside diffuse membranous glomerulonephritis
  • Coders must ensure that the documentation supports the diagnosis and that other potential causes of proteinuria are ruled out

Exclusion Criteria

Do NOT use N06.29 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

81002CPT Code

Urinalysis, automated, with microscopy

Clinical Scenario

Used to evaluate proteinuria in patients suspected of having glomerulonephritis.

Documentation Requirements

Document the reason for urinalysis and any relevant clinical findings.

Specialty Considerations

Nephrologists should ensure that all relevant lab results are included in the patient's record.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of renal conditions, improving the accuracy of diagnoses and treatment planning. N06.29 provides a clear classification for isolated proteinuria associated with diffuse membranous glomerulonephritis, which was less defined in ICD-9.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of renal conditions, improving the accuracy of diagnoses and treatment planning. N06.29 provides a clear classification for isolated proteinuria associated with diffuse membranous glomerulonephritis, which was less defined in ICD-9.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of renal conditions, improving the accuracy of diagnoses and treatment planning. N06.29 provides a clear classification for isolated proteinuria associated with diffuse membranous glomerulonephritis, which was less defined in ICD-9.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the significance of isolated proteinuria?

Isolated proteinuria can indicate kidney dysfunction or be a benign finding. It is essential to evaluate the underlying cause, especially when associated with conditions like diffuse membranous glomerulonephritis.