ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesR93.421

R93.421

Abnormal radiologic findings on diagnostic imaging of right kidney

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

Code Description

ICD-10 R93.421 is a billable code used to indicate a diagnosis of abnormal radiologic findings on diagnostic imaging of right kidney.

Key Diagnostic Point:

R93.421 is used to classify abnormal findings observed in diagnostic imaging studies of the right kidney, such as ultrasound, CT scans, or MRI. These findings may include masses, cysts, stones, or other anomalies that do not have a definitive diagnosis at the time of imaging. The abnormal findings can indicate a range of conditions, from benign cysts to more serious issues like tumors or infections. It is crucial for healthcare providers to document the specific nature of the abnormality, as well as any associated symptoms such as flank pain, hematuria, or changes in renal function. The code does not specify the underlying cause of the abnormality, which necessitates further investigation and possibly additional coding if a definitive diagnosis is established later. Accurate documentation of the imaging results and any clinical correlation is essential for proper coding and billing.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in imaging findings and interpretations
  • Need for correlation with clinical symptoms
  • Potential for multiple underlying conditions
  • Documentation requirements for specificity

Audit Risk Factors

  • Inadequate documentation of imaging findings
  • Failure to link symptoms with imaging results
  • Misinterpretation of abnormal findings
  • Lack of follow-up documentation for definitive diagnosis

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed imaging reports and correlation with patient history and physical examination findings.

Common Clinical Scenarios

Patients presenting with flank pain, hematuria, or incidental findings on imaging.

Billing Considerations

Ensure that any follow-up imaging or procedures are documented to support the diagnosis.

Emergency Medicine

Documentation Requirements

Acute care documentation must include the reason for imaging and any immediate findings.

Common Clinical Scenarios

Patients with acute renal colic or trauma requiring urgent imaging.

Billing Considerations

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

Coding Guidelines

Inclusion Criteria

Use R93.421 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code is used only when the abnormal finding is documented and not yet classified under a specific diagnosis

Exclusion Criteria

Do NOT use R93.421 When
No specific exclusions found.

Related CPT Codes

74176CPT Code

CT abdomen and pelvis with contrast

Clinical Scenario

Used when imaging is performed to evaluate abnormal findings.

Documentation Requirements

Document the reason for the CT scan and any findings.

Specialty Considerations

Ensure that the imaging report is available for coding.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of abnormal findings, improving the granularity of data for healthcare analytics and reimbursement.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of abnormal findings, improving the granularity of data for healthcare analytics and reimbursement.

Reimbursement & Billing Impact

reimbursement.

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 R93.421?

Use R93.421 when there are abnormal findings on imaging of the right kidney that have not yet been classified under a specific diagnosis.