OHIP Billing Guide🩺 ServicePublished 2026
C365

C365 OHIP Billing Code: Navigate Complex In-Patient Interventional Radiology Consultations

OHIP C365 Special Interventional Radiological Consultation is billed for lengthy, complex consultations related to serious interventional radiology cases on hospital in-patients.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference258.35 CAD~4 min read

1What Is the C365 OHIP Code?

What is the C365 Billing Code?

C365 refers to a Special Interventional Radiological Consultation within the Ontario Health Insurance Plan (OHIP) fee schedule. This code is used when a radiologist performs a complex and lengthy consultation, necessitating a minimum of 50 minutes of direct patient contact.

Often utilized in hospital in-patient settings, these consultations typically involve detailed assessments prior to complex interventional procedures, where thorough discussion of risks and alternatives is required. Due to the specific and demanding nature of such cases, documentation must reflect the complexity to justify the billing of C365.

The service is sometimes missed in cases where the physician might under-document the required time or where the consultation does not meet the defined complexities, thereby defaulting to a lesser code.

2Related Codes

CodeNameFrequencyDescription
A335A335 ConsultationOne service per patient per day.Standard consultation within the Diagnostic Radiology listing.
A365A365 Special Interventional Radiological ConsultationSame frequency as C365 for non-hospital settings.Equivalent special consultation for out-patient settings.
C335C335 ConsultationOne service per patient per day.Standard consultation under hospital settings in Diagnostic Radiology.
A331A331 Minor AssessmentUnlimited within medical necessity constraints.Short assessment within the Diagnostic Radiology listing.

3Eligibility Requirements

Eligibility Requirements for C365

  1. Consultation Definition: The C365 code is applied when a consultation is performed that meets the same conditions as the A365 classification in diagnostic radiology settings.
  2. Time Requirement: A minimum of 50 minutes of direct patient contact is required. This time is exclusive of any other remunerated services.
  3. Referral and Documentation:
    • Must be initiated upon a written request from a referring physician, nurse practitioner, or dental surgeon, and address complex, obscure, or serious patient issues.
    • The consultation must result in a written report which includes findings, opinions, and recommendations sent to the referring provider.
  4. Billing Frequency: This service can be billed once per two consecutive 12-month periods. Exceptions apply for hospital in-patients if the second consultation occurs between 12-24 months after the initial consultation.
  5. Video Delivery Option: C365 may be rendered virtually, but only through video consultation, indicated by C365A.

4What Your Clinical Note Must Show

1Documentation and Record-Keeping

Ensure to maintain comprehensive records for compliance and billing validation:

  • Written request for consultation from a referring professional.
  • Documented start and end times of patient direct contact.
  • A thorough report with findings and recommendations sent to the referrer.

5Weak vs. Strong Note Examples

The strong note provides a clear narrative and comprehensive details that justify the extensive nature of the consultation, covering all aspects of the service, while the weak note lacks specificity and detail.

Weak Note

Consultation on complex case conducted. Discussed options. 50 minutes spent.

Strong Note

Conducted a detailed consultation regarding potential endovascular procedure. Patient assessed for 50 minutes to explore possible complications and alternatives considering the significant vascular obstruction noted.

Communicated findings and step-by-step recommendations on patient management in the comprehensive report sent to Dr. Smith.

  • Reviewed patient history and imaging.
  • Detailed discussion on procedural risks and alternatives.
  • Provided a comprehensive consultation report.

6Common Reasons This Code Is Missed

1
Insufficient Documentation of Time
Failing to record start and end times can render the service non-billable.
2
Lack of Complexity Justification
The consultation may not be clearly described as complex, risking default to a lesser code.
3
No Written Request
Missing a formal referral can invalidate the consultation billing.
4
Inadequate Report Back
Not providing a comprehensive report to the referrer can result in an assessment downgrade.
Document C365 correctly — every time
Empathia's templates automatically structure your notes to capture every required element for audit-proof billing.

8Frequently Asked Questions

What is the fee for billing C365 under OHIP?
The OHIP fee for billing C365 is CAD 258.35, reflecting a comprehensive consultation service.
What types of radiology cases qualify for C365 billing?
Special interventional radiology consultations related to pre-procedural assessment of complex cases involving significant patient risk and detailed alternatives discussion.
Can the C365 consultation be billed if rendered via telephone?
No, C365 can only be billed for consultations rendered via video as part of the virtual service option.
What kind of patient scenarios warrant a C365 billing?
In-patient consultations before complex interventional procedures where detailed assessment of potential complications and alternatives is performed.
How frequently can C365 be billed for the same patient?
C365 can be billed once per two consecutive 12-month periods for the same patient and diagnosis; twice if the second is for a hospital in-patient 12–24 months after the first.
What should be included in the post-consultation report for C365?
The report should include findings, opinions, and recommendations, prepared for the referrer, detailing the complex nature of the case discussed.
How is time recorded during a C365 consultation?
Time must be precisely documented with start and end times of direct patient interaction recorded in the patient's medical record.
Disclaimer: This article is intended as a general educational resource for physicians and billing staff. It does not constitute billing advice or a definitive interpretation of the OHIP Schedule of Benefits. Always verify current billing codes, eligibility criteria, and documentation requirements directly against the official Schedule of Benefits or consult with a qualified medical billing specialist.
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