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ICD-10 Guide
ICD-10 CodesA18.11

A18.11

Tuberculosis of kidney and ureter

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

Code Description

ICD-10 A18.11 is a billable code used to indicate a diagnosis of tuberculosis of kidney and ureter.

Key Diagnostic Point:

Tuberculosis of the kidney and ureter is a rare but serious form of extrapulmonary tuberculosis that occurs when Mycobacterium tuberculosis infects the renal system. This condition can arise from hematogenous spread from a primary pulmonary infection or from direct extension from adjacent structures. Patients may present with nonspecific symptoms such as flank pain, hematuria, and renal colic. Diagnosis typically involves imaging studies such as ultrasound or CT scans, along with microbiological tests including urine cultures and PCR testing for Mycobacterium tuberculosis. Treatment usually consists of a multi-drug regimen including isoniazid, rifampin, pyrazinamide, and ethambutol, administered over a period of at least six months. Monitoring for drug resistance is crucial, as resistance can complicate treatment and prolong recovery. Public health implications are significant, as renal tuberculosis can be a marker for disseminated disease, necessitating contact tracing and isolation procedures in cases of active disease. Regular follow-up is essential to ensure treatment adherence and monitor for potential complications such as renal failure or abscess formation.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between renal tuberculosis and other renal pathologies.
  • Need for comprehensive documentation of diagnostic tests and treatment plans.
  • Potential for co-infection with other pathogens.
  • Variability in presentation and symptoms among patients.

Audit Risk Factors

  • Inadequate documentation of diagnostic tests.
  • Failure to document treatment adherence and monitoring.
  • Misclassification of renal tuberculosis as pulmonary tuberculosis.
  • Lack of follow-up documentation.

Specialty Focus

Medical Specialties

Nephrology

Documentation Requirements

Detailed documentation of renal function tests, imaging studies, and treatment plans.

Common Clinical Scenarios

Patients presenting with renal pain, hematuria, or renal masses.

Billing Considerations

Consideration of renal function when prescribing anti-tuberculosis medications.

Infectious Disease

Documentation Requirements

Comprehensive documentation of diagnostic criteria, treatment regimens, and follow-up care.

Common Clinical Scenarios

Patients with a history of tuberculosis presenting with renal symptoms.

Billing Considerations

Monitoring for drug resistance and potential interactions with other medications.

Coding Guidelines

Inclusion Criteria

Use A18.11 When
  • According to ICD
  • 10 guidelines, A18
  • 11 should be used when there is confirmed tuberculosis of the kidney and ureter, supported by appropriate diagnostic testing

Exclusion Criteria

Do NOT use A18.11 When
  • Exclusion criteria include renal conditions not caused by tuberculosis

Related CPT Codes

88305CPT Code

Pathology examination of renal biopsy

Clinical Scenario

Used when renal biopsy is performed to confirm tuberculosis.

Documentation Requirements

Pathology report and clinical notes indicating the need for biopsy.

Specialty Considerations

Nephrology and Infectious Disease specialists should collaborate on biopsy interpretation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of renal tuberculosis, improving the accuracy of data collection and treatment tracking. This specificity aids in better resource allocation and public health monitoring.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of renal tuberculosis, improving the accuracy of data collection and treatment tracking. This specificity aids in better resource allocation and public health monitoring.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of renal tuberculosis, improving the accuracy of data collection and treatment tracking. This specificity aids in better resource allocation and public health monitoring.

Resources

Clinical References

  • •
    CDC Tuberculosis Guidelines

Coding & Billing References

  • •
    CDC Tuberculosis Guidelines

Frequently Asked Questions

What are the common symptoms of renal tuberculosis?

Common symptoms include flank pain, hematuria, and renal colic. Patients may also experience systemic symptoms such as fever and weight loss.

How is renal tuberculosis diagnosed?

Diagnosis typically involves imaging studies, urine cultures for Mycobacterium tuberculosis, and sometimes renal biopsy.

What is the treatment for renal tuberculosis?

Treatment usually consists of a multi-drug regimen including isoniazid, rifampin, pyrazinamide, and ethambutol, monitored for adherence and drug resistance.

What public health measures are necessary for renal tuberculosis?

Contact tracing and isolation procedures may be necessary, especially in cases of active disease, to prevent transmission.