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ICD-10 Guide
ICD-10 CodesA18.1

A18.1

Tuberculosis of genitourinary system

BILLABLE STATUSNo
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 A18.1 is a used to indicate a diagnosis of tuberculosis of genitourinary system.

Key Diagnostic Point:

Tuberculosis of the genitourinary system is a rare but serious manifestation of extrapulmonary tuberculosis, primarily caused by Mycobacterium tuberculosis. This condition can affect various parts of the urinary tract, including the kidneys, ureters, bladder, and reproductive organs. Patients may present with symptoms such as hematuria (blood in urine), dysuria (painful urination), flank pain, and urinary frequency. Diagnosis typically involves a combination of clinical evaluation, imaging studies such as ultrasound or CT scans, and microbiological tests, including urine cultures and PCR testing for Mycobacterium tuberculosis. Treatment usually consists of a multi-drug regimen similar to that used for pulmonary tuberculosis, including isoniazid, rifampin, pyrazinamide, and ethambutol, administered over a period of 6 to 12 months. Monitoring for drug resistance is crucial, as resistance can complicate treatment and prolong recovery. Public health implications are significant, as tuberculosis is a communicable disease, necessitating contact tracing and isolation procedures for active cases to prevent transmission. Regular follow-up and adherence to treatment protocols are essential to ensure successful outcomes and minimize the risk of recurrence.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between pulmonary and extrapulmonary tuberculosis.
  • Understanding the various manifestations of genitourinary tuberculosis.
  • Navigating the complexities of drug-resistant tuberculosis.
  • Ensuring accurate documentation of symptoms and diagnostic tests.

Audit Risk Factors

  • Inadequate documentation of diagnostic tests performed.
  • Failure to document the presence of drug resistance.
  • Lack of clarity in distinguishing between active and latent tuberculosis.
  • Insufficient follow-up documentation regarding treatment adherence.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed clinical notes on symptoms, diagnostic tests, and treatment plans.

Common Clinical Scenarios

Patients presenting with unexplained hematuria or recurrent urinary tract infections.

Billing Considerations

Consideration of drug resistance and the need for specialized treatment regimens.

Urology

Documentation Requirements

Comprehensive records of urological evaluations and imaging studies.

Common Clinical Scenarios

Management of renal tuberculosis and its complications.

Billing Considerations

Coordination with infectious disease specialists for treatment management.

Coding Guidelines

Inclusion Criteria

Use A18.1 When
  • According to ICD
  • 10 guidelines, A18
  • 1 should be used when tuberculosis is confirmed in the genitourinary system
  • It is important to document the specific site of infection and any associated complications

Exclusion Criteria

Do NOT use A18.1 When
  • Exclusion criteria include cases where tuberculosis is not the primary diagnosis or when the infection is localized to other systems

Related CPT Codes

87070CPT Code

Culture, Mycobacterium tuberculosis

Clinical Scenario

Used when testing urine samples for tuberculosis.

Documentation Requirements

Document the reason for testing and any relevant clinical findings.

Specialty Considerations

Infectious disease specialists should ensure proper specimen collection and handling.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of tuberculosis cases, including those affecting the genitourinary system. This specificity aids in better tracking of disease prevalence and treatment outcomes, ultimately improving public health responses.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of tuberculosis cases, including those affecting the genitourinary system. This specificity aids in better tracking of disease prevalence and treatment outcomes, ultimately improving public health responses.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    CDC Tuberculosis (TB) Fact Sheet

Coding & Billing References

  • •
    CDC Tuberculosis (TB) Fact Sheet

Frequently Asked Questions

What are the common symptoms of genitourinary tuberculosis?

Common symptoms include hematuria, dysuria, flank pain, and urinary frequency. Patients may also experience systemic symptoms such as fever and weight loss.

How is genitourinary tuberculosis diagnosed?

Diagnosis typically involves urine cultures, imaging studies, and sometimes biopsy to confirm the presence of Mycobacterium tuberculosis.

What is the treatment for genitourinary tuberculosis?

Treatment usually involves a multi-drug regimen similar to that for pulmonary tuberculosis, lasting 6 to 12 months, with close monitoring for drug resistance.

What public health measures are necessary for tuberculosis?

Public health measures include contact tracing, isolation of active cases, and ensuring adherence to treatment to prevent transmission.