R90-R94
Medium Complexity
Abnormal findings on diagnostic imaging and in function studies, without diagnosis
Primary Specialty: Radiology
Last Updated: 2025-09-10
ICD-10 Codes (79)
76 billable0 category headers
R91R91.1Billable
R91.8Billable
R92Billable
R92.0Billable
R92.1Billable
R92.2Billable
R92.3Billable
R92.30Billable
R92.31Billable
R92.311Billable
R92.312Billable
R92.313Billable
R92.32Billable
R92.321Billable
R92.322Billable
R92.323Billable
R92.33Billable
R92.331Billable
R92.332Billable
R92.333Billable
R92.34Billable
R92.341Billable
R92.342Billable
R92.343Billable
R92.8Billable
R93R93.0Billable
R93.1Billable
R93.2Billable
R93.3Billable
R93.4Billable
R93.41Billable
R93.42Billable
R93.421Billable
R93.422Billable
R93.429Billable
R93.49Billable
R93.5Billable
R93.6Billable
R93.7Billable
R93.8Billable
R93.81Billable
R93.811Billable
R93.812Billable
R93.813Billable
R93.819Billable
R93.89Billable
R93.9Billable
R94R94.0Billable
R94.01Billable
R94.02Billable
R94.09Billable
R94.1Billable
R94.11Billable
R94.110Billable
R94.111Billable
R94.112Billable
R94.113Billable
R94.118Billable
R94.12Billable
R94.120Billable
R94.121Billable
R94.128Billable
R94.13Billable
R94.130Billable
R94.131Billable
R94.138Billable
R94.2Billable
R94.3Billable
R94.30Billable
R94.31Billable
R94.39Billable
R94.4Billable
R94.5Billable
R94.6Billable
R94.7Billable
R94.8Billable
Updates & Changes
FY 2026 Updates
Current Year
Deleted Codes
No codes deleted in this range for FY 2026
No significant changes for FY 2026
This range maintains stability with current coding practices
Historical Changes
- •FY 2025: Routine maintenance updates with minor terminology clarifications
- •FY 2024: Enhanced specificity requirements for certain code ranges
- •FY 2023: Updated documentation guidelines for improved clarity
Upcoming Changes
- •Proposed updates pending review by Coordination and Maintenance Committee
- •Under consideration: Enhanced digital health integration codes
Implementation Guidance
- •Review all FY 2026 updates for R90-R94 codes before implementation
- •Always verify the most current codes in the ICD-10-CM manual
- •Ensure clinical documentation supports the selected diagnosis codes
- +3 more guidance items...
Range Overview
high priority
The R90-R94 category in the ICD-10 encompasses codes for abnormal findings on diagnostic imaging and in function studies, without a confirmed diagnosis. These codes are used when there are abnormal findings on diagnostic tests, but no definitive diagnosis has been made. They cover a wide range of imaging and functional studies, including radiological, ultrasound, cardiovascular, and neurological findings.
Key Usage Points:
- •Use these codes when an abnormal finding has been identified, but no diagnosis has been confirmed.
- •The codes are specific to the type of diagnostic test and the body system involved.
- •They are not used for normal findings or when a diagnosis has been confirmed.
- •The codes can be used in any healthcare setting where diagnostic imaging or function studies are performed.
- •These codes are typically used as secondary codes, following a code for the reason for the test.
Coding Guidelines
When to Use:
- ✓When an abnormal finding is identified on a radiological test, but no diagnosis is confirmed.
- ✓When an abnormal finding is identified on a cardiovascular function test, but no diagnosis is confirmed.
- ✓When an abnormal finding is identified on a neurological function test, but no diagnosis is confirmed.
- ✓When an abnormal finding is identified on an ultrasound, but no diagnosis is confirmed.
When NOT to Use:
- ✗When a diagnosis has been confirmed based on the abnormal finding.
- ✗When the finding on the diagnostic test is normal.
- ✗When the abnormal finding is not related to the reason for the test.
- ✗When the abnormal finding is expected due to a known condition.
Code Exclusions
Always verify exclusions in the ICD-10 manual, as they may change with updates to the coding system.
Documentation Requirements
Documentation for these codes should clearly describe the abnormal finding, the type of diagnostic test, and the reason for the test. The documentation should also indicate that no diagnosis has been confirmed based on the finding.
Clinical Information:
- •Type of diagnostic test
- •Description of abnormal finding
- •Reason for the test
- •Statement that no diagnosis has been confirmed
Supporting Evidence:
- •Diagnostic test report
- •Clinical notes from the provider
- •Referral for the diagnostic test
Good Documentation Example:
Patient underwent MRI of the brain due to persistent headaches. MRI showed an abnormal finding of a small lesion in the right frontal lobe. No diagnosis has been confirmed at this time.
Poor Documentation Example:
Patient had an MRI. Abnormal finding.
Common Documentation Errors:
- âš Not specifying the type of diagnostic test
- âš Not describing the abnormal finding
- âš Not stating that no diagnosis has been confirmed
- âš Using the code for a confirmed diagnosis
Range Statistics
5
Total Codes
76
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:18
Coding Complexity
Medium
Complexity Rating
These codes are of medium complexity because they require a clear understanding of the diagnostic test and the findings. They also require the coder to determine whether a diagnosis has been confirmed, which can be challenging in some cases.
Key Factors:
- â–¸Determining whether the finding is abnormal
- â–¸Identifying the type of diagnostic test
- â–¸Determining whether a diagnosis has been confirmed
- â–¸Understanding the reason for the test
Specialty Focus
These codes are used across many specialties, including radiology, cardiology, neurology, and obstetrics. They are particularly common in specialties that rely heavily on diagnostic imaging and function studies.
Primary Specialties:
Radiology
40%
Cardiology
30%
Neurology
20%
Obstetrics
10%
Clinical Scenarios:
- • A patient has an abnormal finding on a chest x-ray, but no diagnosis is confirmed.
- • A patient has an abnormal finding on an EKG, but no diagnosis is confirmed.
- • A patient has an abnormal finding on an EEG, but no diagnosis is confirmed.
- • A pregnant patient has an abnormal finding on an ultrasound, but no diagnosis is confirmed.
Resources & References
There are many resources available for coding the R90-R94 category, including the ICD-10 manual, coding training materials, and online coding resources.
Official Guidelines:
- ICD-10 manual
- ICD-10 training materials
- Official ICD-10 website
- Online coding resources
Clinical References:
- Diagnostic test reports
- Clinical notes from the provider
- Referral for the diagnostic test
Educational Materials:
- Coding training materials
- Online coding courses
- Coding webinars
Frequently Asked Questions
Can I use an R90-R94 code for a confirmed diagnosis?
No, these codes are only used when an abnormal finding has been identified on a diagnostic test, but no diagnosis has been confirmed.