C720 – Comprehensive occupational medicine consultation (hospital in-patient)
OHIP Surgical Procedures Code · Schedule of Benefits
A consultation rendered by a specialist in occupational medicine who provides all the appropriate elements of a consultation and spends a minimum of 75 minutes in direct contact with the patient, exclusive of time spent rendering any other separately billable intervention to the patient. This code is specifically for non-emergency hospital in-patient services.
When to Use
- Use C720 when performing a complex, time-intensive occupational medicine consultation for an inpatient that requires at least 75 minutes of direct, face-to-face patient contact.
- Use C720 as the initial assessment code when you are the Most Responsible Physician (MRP) for an occupational medicine-related hospital admission, allowing for the addition of the E082 premium.
Common Pitfalls
- Including non-patient-facing activities, such as chart reviews or report writing, in the 75-minute time calculation will lead to audit clawbacks; only direct, face-to-face time counts.
- Billing C720 when the 75-minute threshold is not met; if the time requirement is not achieved, you must downgrade the claim to a lesser assessment code like C725.
- Failing to document precise start and stop times in the medical record, which is a mandatory requirement for all time-based consultation codes.
Billing Tips
- Ensure your documentation clearly delineates the 75 minutes of direct patient contact from any other separately billable procedures performed during the same hospital visit.
- If you are the MRP, always append the E082 premium to the C720 claim to capture the 30% increase for initial hospital admission assessments.
Effective: April 1, 2026
Non-emergency hospital in-patient services
Consultation
A copy of the written request for the consultation, signed by the referring physician, nurse practitioner or dental surgeon must be kept in the consulting physician’s medical record, except in the case of a consultation which occurs in a hospital, long-term care institution or multi-specialty clinic where common medical records are maintained. In such cases, the written request may be contained on the common medical record.
The request identifies the consultant by name and/or the specialty being consulted, the referring physician, nurse practitioner or dental surgeon by name and billing number, and identifies the patient by name and health number.
The written request sets out the information relevant to the referral and specifies the service(s) required.
The consultant must provide a written report (including findings, opinions, and recommendations) to the referring provider.
Start and stop times must be recorded in the patient’s permanent medical record.
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