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v1.0.0
ICD-10 Guide
ICD-10 CodesR82.992

R82.992

Hyperoxaluria

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 R82.992 is a billable code used to indicate a diagnosis of hyperoxaluria.

Key Diagnostic Point:

Hyperoxaluria is characterized by an excessive excretion of oxalate in the urine, which can lead to the formation of kidney stones and renal damage. It is often asymptomatic but may present with symptoms such as flank pain, hematuria, and urinary tract infections. The condition can be primary, due to genetic disorders affecting oxalate metabolism, or secondary, resulting from dietary factors or malabsorption syndromes. Laboratory findings typically include elevated urinary oxalate levels, which can be confirmed through 24-hour urine collection. Clinicians may also observe calcium oxalate crystals in urine microscopy. Understanding the underlying cause is crucial for management, as treatment may involve dietary modifications, increased fluid intake, or pharmacological interventions to reduce oxalate absorption or promote its excretion.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between primary and secondary hyperoxaluria
  • Need for comprehensive patient history and dietary assessment
  • Potential overlap with other renal conditions
  • Variability in laboratory testing methods

Audit Risk Factors

  • Inadequate documentation of symptoms leading to diagnosis
  • Failure to specify primary vs. secondary hyperoxaluria
  • Misinterpretation of laboratory results
  • Lack of follow-up documentation for ongoing management

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed patient history, including dietary habits and family history of kidney stones.

Common Clinical Scenarios

Patients presenting with recurrent kidney stones or unexplained renal failure.

Billing Considerations

Ensure to document any underlying conditions contributing to hyperoxaluria.

Emergency Medicine

Documentation Requirements

Acute presentation notes, including pain assessment and laboratory results.

Common Clinical Scenarios

Patients presenting with acute flank pain and hematuria.

Billing Considerations

Document any immediate interventions and follow-up plans.

Coding Guidelines

Inclusion Criteria

Use R82.992 When
  • Follow ICD
  • CM guidelines for coding symptoms and abnormal findings
  • Ensure specificity in documentation to support the diagnosis of hyperoxaluria

Exclusion Criteria

Do NOT use R82.992 When
No specific exclusions found.

Related CPT Codes

81000CPT Code

Urinalysis, by dipstick or tablet reagent

Clinical Scenario

Used to screen for urinary abnormalities including hyperoxaluria.

Documentation Requirements

Document the reason for urinalysis and any abnormal findings.

Specialty Considerations

Ensure that the urinalysis is linked to the diagnosis of hyperoxaluria.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of hyperoxaluria, improving the accuracy of data collection and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of hyperoxaluria, improving the accuracy of data collection and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    American Urological Association Guidelines

Coding & Billing References

  • •
    American Urological Association Guidelines

Frequently Asked Questions

What is the primary cause of hyperoxaluria?

Primary hyperoxaluria is usually caused by genetic defects in the liver's metabolism of glyoxylate, leading to excessive oxalate production.

How is hyperoxaluria diagnosed?

Diagnosis is typically made through a 24-hour urine collection to measure oxalate levels, alongside clinical evaluation of symptoms.