1What Is the C485 OHIP Code?
What is C485?
C485 is an OHIP billing code designated for rheumatologists conducting consultations for non-emergency in-patient services. This code is particularly relevant in a clinical context where a rheumatological opinion is necessary due to the complexity of a case, such as suspected vasculitis, differentiating between septic and inflammatory joint conditions, or managing a flare in a patient admitted for unrelated reasons.
Consultations under this code require a detailed assessment and result in a comprehensive report for the referring physician. Commonly, physicians might miss billing this consultation code correctly by not adhering to referral documentation requirements or by not meeting frequency limits.
2Related Codes
| Code | Name | Frequency | Description |
|---|---|---|---|
| A485 | Consultation | As Out-Patient service, frequency aligns with C485 | Equivalent outpatient service for consultations. |
| A486 | Repeat consultation | Based on need and adherence to guidelines | Repeated consultation service, often following initial assessment. |
| A590 | Comprehensive rheumatology consultation | As required based on clinical necessity | More detailed comprehensive consultation for complex cases. |
| A595 | Limited consultation | Dependent on clinical indication and assessment | Limited scope consultation with specific focus. |
3Eligibility Requirements
Eligibility Requirements for C485
To be eligible to bill for C485, the following conditions must be met:
- Referral Requirement: The consultation must be requested in writing by a referring physician, nurse practitioner, or dental surgeon with knowledge of the patient's case.
- Documentation: A copy of the written request for consultation must be retained in the consulting physician's medical record, unless the consultation occurs in facilities with common medical records.
- Frequency Limits: Only one consultation for the same diagnosis per patient per two years is billable, unless specific conditions for repeat consultations met.
- Exclusions: Requests solicited after the consultation or those not following a proper referral chain are not eligible.
- Virtual Consultations: Only video-based virtual consultations are eligible under C485A.
4What Your Clinical Note Must Show
Ensure the following documents are prepared and retained for C485 billing:
- Signed consultation request from referring provider.
- Details including referring provider’s and patient's identification and health number.
- Written report of findings, opinions, and recommendations given to the referring provider.
5Weak vs. Strong Note Examples
The strong note provides clear documentation of the consultation process, including referral, detailed assessment, and a written report as required by C485 guidelines, whereas the weak note lacks these critical details.
Consulted on patient for joint pain. Shared recommendations with ward team verbally.
Rheumatology consultation requested by Dr. Smith for Mr. Brown due to suspected vasculitis. Evaluated patient's history, lab results, and physical signs in detail.
Delivered a comprehensive report to Dr. Smith detailing findings, differential diagnosis, and management recommendations.
- Referral details included with consulting provider’s name.
- Assessment start and end times recorded.
