1What Is the C721 OHIP Code?
Understanding C721
C721 is an OHIP billing code used by occupational medicine specialists for complex medical specific re-assessments of hospital in-patients. This code is pertinent in situations where a patient's condition involves complexity, such as serious exposure-related illnesses, including inhalational injuries or heavy metal toxicity. These cases often require comprehensive evaluation involving the illness, its source, and implications for the patient's return to work.
Due to the intricate nature of these re-assessments, physicians must ensure thorough documentation and justify the complexity of the case. Errors often occur when the complexity is not adequately documented or when frequency limits are exceeded.
2Related Codes
| Code | Name | Frequency | Description |
|---|---|---|---|
| A723 | Medical specific assessment | Per encounter | Used for routine assessments outside complex cases, with a fee of CAD 95.95. |
| C723 | Medical specific assessment | Per encounter | Similar to A723, C723 is used within hospital settings with a fee of CAD 95.95. |
| A721 | Complex medical specific re-assessment | Up to 4 times annually | Corresponds to C721 but for out-patient settings, with a fee of CAD 83.40. |
| A724 | Medical specific re-assessment | Per encounter | For routine re-assessments at a lesser fee of CAD 72.00. |
3Eligibility Requirements
Eligibility Requirements for C721
- Setting: C721 is applicable for non-emergency hospital in-patient services.
- Virtual Care: This service may be conducted virtually but only via video, billed as C721A.
- Frequency: Limited to four assessments per patient per physician per 12-month period, whether complex or not. Additional assessments will be adjusted to a lesser fee.
- Time Documentation: A record of start and end times of the service must be kept in the patient's medical record for billing eligibility.
4What Your Clinical Note Must Show
The service is not payable without documented time duration.
- Start time of the service
- End time of the service
5Weak vs. Strong Note Examples
The strong note succeeds due to its detailed description of the complexity and specific actions taken, along with precise time documentation, whereas the weak note lacks these crucial elements.
Patient seen for re-assessment. Condition discussed. No additional actions taken.
Re-assessment conducted for patient with complex hydrocarbon exposure.
Reviewed symptoms, lab results (including neurotoxicity markers), and workplace exposure scenarios.
- Determined specific actions for return to work.
- Documented detailed time spent: Start 10:00 AM, End 10:45 AM.
