C481 – Complex medical specific re-assessment
OHIP Surgical Procedures Code — CONSULTATIONS AND VISITS · Schedule of Benefits
A complex medical specific re-assessment rendered by a Rheumatologist for a non-emergency hospital in-patient. According to , this service is a re-assessment of a patient because of the complexity, obscurity, or seriousness of the patient's condition and includes all the requirements of a medical specific re-assessment. The physician must report his/her findings, opinions, or recommendations in writing to the patient's primary care physician, otherwise the amount payable will be adjusted to a lesser assessment fee. The 'C' prefix indicates the service is for a non-emergency in-patient in an acute care hospital ().
When to Use
- Use C481 for a Rheumatology inpatient re-assessment when the patient's condition is significantly complex or obscure, requiring a level of cognitive effort beyond a standard C480 follow-up visit.
- Use this code when you have performed a comprehensive review of a patient's multi-system autoimmune condition that necessitates a detailed written report to the referring primary care physician.
Common Pitfalls
- Failing to send a written report to the primary care physician will trigger an automatic adjustment to a lower assessment fee, as this is a mandatory requirement for the 'Complex' designation.
- Exceeding the limit of 4 combined medical specific assessments and complex re-assessments per patient per 12-month period will result in automatic payment downgrades.
- Attempting to bill a Special Visit Premium with C481 will result in rejection; use an 'A' prefix code if the service was rendered in conjunction with a special visit.
Billing Tips
- Ensure your chart documentation explicitly justifies the 'complexity, obscurity, or seriousness' of the condition to support the use of C481 over the standard C480 follow-up code.
- If the patient is located in an ICU or CCU, remember to append the C101 premium to your C481 claim to maximize the value of the inpatient visit.
Effective: June 1, 2025
A. Consultations and Visits
CONSULTATIONS AND VISITS
Assessment
Hospital and Institutional Consultations and Assessments, Assessments
The physician must report his/her findings, opinions, or recommendations in writing to the patient's primary care physician. ()
All insured services must be documented in appropriate medical records to establish that the service was provided, is the service for which the account is submitted, and was medically necessary. ()
The medical record must contain the patient's name and health number, the date and reason for the service, and the opinion, diagnosis, advice, and/or recommendations of the specialist. ()
For services involving time, the start and end times must be recorded in the patient's medical record. ()
The patient's permanent medical record must identify the supervising physician, the medical trainee and their level of training, the description of the service, and patient consent if performed by a medical trainee under supervision. ()
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