ICD-10 Guide

Abnormal Magnetic Resonance Imaging

ICD-10 Coding for Abnormal Magnetic Resonance Imaging(R94.02, R90.89)

PRIMARY SPECIALTYRadiology

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Abnormal Magnetic Resonance Imaging?

Abnormal Magnetic Resonance Imaging (MRI) refers to findings on MRI scans that deviate from normal anatomical or physiological parameters. Key clinical points include: 1) Abnormal MRI results can indicate a variety of conditions, including tumors, lesions, or degenerative diseases. 2) MRI is a non-invasive imaging technique that provides detailed images of soft tissues, making it essential for diagnosing neurological, musculoskeletal, and cardiovascular disorders. 3) The interpretation of MRI results requires correlation with clinical findings and other diagnostic tests. Typical use cases for this diagnosis code include evaluating patients with unexplained neurological symptoms, assessing joint pain, or monitoring known conditions. Etiologically, abnormal MRI findings may arise from trauma, inflammation, or neoplastic processes. Pathophysiologically, these abnormalities can reflect changes in tissue composition, structure, or function. Clinically, patients may present with symptoms such as pain, weakness, or sensory changes, prompting the need for MRI evaluation.

Key Clinical Considerations:

Abnormal MRI findings must be correlated with clinical symptoms and history.
Signs may include localized pain, neurological deficits, or functional impairment.
Resolution criteria may involve improvement in symptoms and follow-up imaging showing normalization.
Imaging findings supporting diagnosis include the presence of masses, edema, or structural abnormalities.

Clinical Information

Clinical Criteria & Documentation Requirements

Documentation must include the reason for the MRI, findings, and clinical correlation.
Compliant documentation: 'MRI shows a mass in the left temporal lobe consistent with the patient's seizures.' Non-compliant: 'MRI was done.'
Template phrases: 'MRI findings indicate [specific abnormality] related to [clinical condition].'
Medical necessity documentation must justify the need for MRI based on clinical symptoms and prior treatments.

Coding Guidelines

Usage Guidelines & Examples

Use R94.02 for abnormal MRI findings related to the central nervous system, e.g., a patient with unexplained headaches and abnormal MRI results.
Do NOT use this code for normal MRI results or when MRI is performed without clinical symptoms.
Correct usage: 'MRI shows abnormal findings consistent with multiple sclerosis.' Incorrect: 'MRI done for routine check-up.'
Common errors include misreporting normal findings as abnormal; ensure clinical correlation is documented.

Code Exclusions

Important Exclusions

Excluded conditions include normal MRI findings or imaging performed without clinical indications.
Alternative codes for exclusions may include Z01.818 for normal findings.
Common exclusion errors involve misclassifying normal findings as abnormal; ensure clarity in documentation.
Certain conditions are excluded to maintain coding specificity and accuracy.

Specialty Focus

Primary Specialty

Radiology

Specialty Applications

This diagnosis applies to conditions such as tumors, strokes, or degenerative diseases.
Appropriate in clinical scenarios involving unexplained neurological symptoms or pain.
Applicable in various settings including outpatient radiology, inpatient care, and emergency departments.
Specialty-specific considerations include the need for neurologists or orthopedic consultations.

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

Template: 'Abnormal MRI findings diagnosed based on imaging results and clinical symptoms.'

Template 2

Template: 'Patient presents with persistent headaches consistent with abnormal MRI findings.'

Template 3

Template: 'Diagnostic criteria met: MRI shows lesions in the brain consistent with [specific condition].'

Template 4

Template: 'Treatment plan includes follow-up MRI and referral to neurology for [condition].'

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

What documentation is required for this code?

Detailed documentation must include clinical indications for the MRI and specific findings.

When should this code be used vs similar codes?

Use R94.02 for abnormal findings; use R90.89 for other specific abnormal findings.

What are common billing issues with this code?

Common issues include denials for lack of medical necessity; ensure clinical justification is documented.

What procedures are commonly associated?

Related CPT codes include 70551 for MRI of the brain and 73721 for MRI of the knee.

What is Abnormal Magnetic Resonance Imaging?

Key Clinical Considerations:

Abnormal MRI findings must be correlated with clinical symptoms and history.
Signs may include localized pain, neurological deficits, or functional impairment.
Resolution criteria may involve improvement in symptoms and follow-up imaging showing normalization.
Imaging findings supporting diagnosis include the presence of masses, edema, or structural abnormalities.

Abnormal Magnetic Resonance Imaging

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Template 1

Template 2

Template 3

Template 4

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

What documentation is required for this code?

When should this code be used vs similar codes?

What are common billing issues with this code?

What procedures are commonly associated?

Abnormal Magnetic Resonance Imaging

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Template 1

Template 2

Template 3

Template 4

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

What documentation is required for this code?

When should this code be used vs similar codes?

What are common billing issues with this code?

What procedures are commonly associated?