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v1.0.0
ICD-10 Guide
ICD-10 CodesR31.9

R31.9

Hematuria, unspecified

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

Code Description

ICD-10 R31.9 is a billable code used to indicate a diagnosis of hematuria, unspecified.

Key Diagnostic Point:

Hematuria, or the presence of blood in urine, can be a significant clinical finding that may indicate various underlying conditions. The term 'unspecified' is used when the cause of hematuria has not been determined or documented. Hematuria can be classified as gross (visible to the naked eye) or microscopic (detected only under a microscope). Common causes include urinary tract infections (UTIs), kidney stones, trauma, tumors, and glomerular diseases. The clinical presentation may vary, with patients reporting symptoms such as flank pain, dysuria, or changes in urinary frequency. Laboratory findings typically include urinalysis, which may reveal red blood cells, protein, or signs of infection. A thorough diagnostic approach is essential, often involving imaging studies like ultrasound or CT scans, and sometimes cystoscopy to visualize the bladder. Accurate documentation of the patient's symptoms, history, and any diagnostic findings is crucial for appropriate coding and management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential underlying causes
  • Need for thorough diagnostic workup
  • Differentiation between gross and microscopic hematuria
  • Documentation of associated symptoms

Audit Risk Factors

  • Inadequate documentation of symptoms and findings
  • Failure to specify the type of hematuria
  • Misuse of unspecified codes when more specific codes are available
  • Lack of follow-up documentation on diagnostic results

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed patient history, physical examination findings, and results of urinalysis and imaging studies.

Common Clinical Scenarios

Patients presenting with unexplained hematuria during routine check-ups or following urinary symptoms.

Billing Considerations

Ensure comprehensive documentation of all diagnostic tests performed and their results to support the diagnosis.

Emergency Medicine

Documentation Requirements

Acute care documentation including triage notes, vital signs, and immediate lab results.

Common Clinical Scenarios

Patients presenting with acute flank pain and hematuria, potentially indicating kidney stones or trauma.

Billing Considerations

Document the urgency of the situation and any immediate interventions performed.

Coding Guidelines

Inclusion Criteria

Use R31.9 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code is used only when the cause of hematuria is not specified
  • Document all relevant clinical findings and diagnostic tests to support the use of R31

Exclusion Criteria

Do NOT use R31.9 When
No specific exclusions found.

Related CPT Codes

81000CPT Code

Urinalysis, by dipstick or tablet reagent

Clinical Scenario

Used to evaluate hematuria during initial assessment.

Documentation Requirements

Document the results of the urinalysis and any follow-up actions taken.

Specialty Considerations

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

76700CPT Code

Ultrasound, abdomen, complete

Clinical Scenario

Ordered to evaluate for kidney stones or other abnormalities in patients with hematuria.

Documentation Requirements

Document the indication for the ultrasound and the findings.

Specialty Considerations

Link the ultrasound findings to the diagnosis of hematuria.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of hematuria, improving the ability to capture the nuances of this symptom. However, it also requires coders to be more diligent in documenting the clinical context to avoid misuse of unspecified codes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of hematuria, improving the ability to capture the nuances of this symptom. However, it also requires coders to be more diligent in documenting the clinical context to avoid misuse of unspecified codes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of hematuria, improving the ability to capture the nuances of this symptom. However, it also requires coders to be more diligent in documenting the clinical context to avoid misuse of unspecified codes.

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

When should I use R31.9?

Use R31.9 when hematuria is documented but the cause is not specified. Ensure that all relevant clinical findings are documented to support this coding.

What are the common causes of hematuria?

Common causes include urinary tract infections, kidney stones, trauma, tumors, and glomerular diseases. A thorough evaluation is necessary to determine the underlying cause.