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v1.0.0
ICD-10 Guide
DiagnosesAbnormal Computed Tomography Abdomen

Abnormal Computed Tomography Abdomen

ICD-10 Coding for Abnormal CT Abdomen(R93.5)

PRIMARY SPECIALTYRadiology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Abnormal Computed Tomography Abdomen?
Essential facts and insights about Abnormal CT Abdomen

Key Clinical Considerations:

  • Presence of abnormal findings on diagnostic imaging of abdomen
  • Inconclusive or unexpected results from CT scan of abdomen

Clinical Information

Clinical Criteria & Documentation Requirements

  • Detailed description of abnormal findings on CT scan
  • Clinical relevance of the abnormal findings
  • Patient's presenting symptoms and medical history

Coding Guidelines

Usage Guidelines & Examples

  • R93.5 is specific to abnormal findings on diagnostic imaging of abdomen and pelvis, including computed tomography (CT)
  • Distinguish from R93.4, which refers to abnormal findings on diagnostic imaging of other parts of digestive tract

Code Exclusions

Important Exclusions

  • Abnormal findings on diagnostic imaging of digestive tract (R93.4)
  • Abnormal findings on diagnostic imaging of urinary organs (R93.6)

Related ICD-10 Codes

Primary Codes
R93.5
Abnormal findings on diagnostic imaging of other abdominal regions, including retroperitoneum
Ancillary Codes
R10.9
Differential Codes
K35.80

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Radiology

Specialty Applications

  • Abnormal CT scan of abdomen without clear diagnosis
  • Unexpected or unexplained findings on abdominal CT scan

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Template 1

Patient presented with [symptoms]. CT scan of abdomen revealed [describe findings].

Template 2

Abnormal findings on CT scan of abdomen: [describe findings]. Further investigation needed.

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Can R93.5 be used for abnormal findings on an abdominal x-ray?

No, R93.5 is specific to abnormal findings on diagnostic imaging, which includes CT scans, MRIs, and ultrasounds.

When should this code be used?

This code should be used when there are abnormal findings on a CT scan of the abdomen that do not have a clear diagnosis.