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v1.0.0
ICD-10 Guide
ICD-10 CodesR31.29

R31.29

Other microscopic hematuria

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

Code Description

ICD-10 R31.29 is a billable code used to indicate a diagnosis of other microscopic hematuria.

Key Diagnostic Point:

Microscopic hematuria is defined as the presence of red blood cells in the urine that is not visible to the naked eye but can be detected through laboratory testing. This condition can be indicative of various underlying pathologies, ranging from benign to serious. Common causes include urinary tract infections (UTIs), kidney stones, glomerulonephritis, and malignancies of the urinary tract. Patients may present with symptoms such as flank pain, dysuria, or urinary frequency, but many cases are asymptomatic. Laboratory findings typically involve urinalysis, which reveals red blood cells, and may include additional tests such as urine culture or imaging studies to identify the underlying cause. It is crucial for healthcare providers to conduct a thorough evaluation to determine the etiology of the hematuria, as this can guide appropriate management and treatment. Accurate coding of R31.29 is essential for proper documentation and reimbursement, as it reflects the complexity of the patient's condition and the need for further diagnostic workup.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential underlying causes
  • Need for comprehensive diagnostic evaluation
  • Differentiation from other types of hematuria
  • Documentation of clinical findings and symptoms

Audit Risk Factors

  • Inadequate documentation of symptoms and clinical findings
  • Failure to specify the underlying cause of hematuria
  • Misclassification of hematuria type
  • Lack of follow-up documentation for diagnostic tests

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed history and physical examination notes, including any relevant lab results and imaging studies.

Common Clinical Scenarios

Patients presenting with unexplained hematuria during routine check-ups or with associated symptoms like flank pain.

Billing Considerations

Ensure that all potential causes are explored and documented, including any referrals to urology or nephrology.

Emergency Medicine

Documentation Requirements

Acute care notes that capture the patient's presenting symptoms, vital signs, and any immediate interventions.

Common Clinical Scenarios

Patients presenting with acute flank pain or hematuria following trauma.

Billing Considerations

Document the urgency of the situation and any immediate diagnostic tests performed, such as CT scans.

Coding Guidelines

Inclusion Criteria

Use R31.29 When
  • According to ICD
  • CM guidelines, R31
  • 29 should be used when microscopic hematuria is documented without a more specific diagnosis
  • Coders must ensure that the clinical documentation supports the use of this code and that it is not used inappropriately when a more specific diagnosis is available

Exclusion Criteria

Do NOT use R31.29 When
No specific exclusions found.

Related CPT Codes

81000CPT Code

Urinalysis, by dipstick or tablet reagent

Clinical Scenario

Used to confirm the presence of hematuria during a patient visit.

Documentation Requirements

Document the reason for the urinalysis and any relevant symptoms.

Specialty Considerations

In emergency settings, ensure that the urgency of the situation is documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like microscopic hematuria, improving the granularity of data for epidemiological studies and healthcare management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like microscopic hematuria, improving the granularity of data for epidemiological studies and healthcare management.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like microscopic hematuria, improving the granularity of data for epidemiological studies and healthcare management.

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 difference between microscopic and gross hematuria?

Microscopic hematuria is detected through laboratory testing and is not visible to the naked eye, while gross hematuria is visible and can be seen in the urine.