1What Is the C463 OHIP Code?
What is C463?
C463 is an OHIP billing code designated for medical specific assessments conducted by infectious disease specialists for non-emergency hospital in-patients. This type of assessment involves a detailed and comprehensive evaluation of patients typically presenting with complex infectious cases such as bacteraemia, prosthetic device infections, or fever of unknown origin.
It is crucial to distinguish between a medical specific assessment and a consultation. While both involve a detailed examination, the assessment focuses more broadly on evaluation for diagnosis, exclusion of disease, or functional assessment, rather than consultation-driven problem solving.
Physicians might often miss the opportunity to bill C463 due to misunderstandings regarding its distinct application compared to more generic assessments or consultations. Ensuring a thorough understanding of the eligibility criteria and documentation requirements is essential.
2Related Codes
| Code | Name | Frequency | Description |
|---|---|---|---|
| A463 | Medical specific assessment | One per patient per physician per 12 months under specific circumstances. | Equivalent service to C463 when delivered outside hospital in-patient settings. |
| W464 | General re-assessment in nursing home | As per Nursing Homes Act regulations. | Re-assessment for patients in nursing homes. |
| A461 | Complex medical specific re-assessment | One per patient per physician as clinically justified. | For complex cases where a re-assessment is needed in infectious disease. |
| A464 | Medical specific re-assessment | As clinically justified. | Re-assessment after initial specific assessment in infectious disease. |
3Eligibility Requirements
Eligibility Requirements
To bill for code C463, the following conditions must be met:
- Setting: Rendered during non-emergency hospital in-patient services specific to infectious disease.
- Frequency Limitation: Generally limited to one assessment per patient per physician per 12-month period. A second assessment is permissible if the patient presents with a clearly unrelated diagnosis or if at least 90 days have elapsed and the second is a hospital admission assessment.
- Virtual Care: Eligible for billing as C463A if rendered via video. Telephone assessments are not eligible.
- Documentation: Start and stop times for the service must be recorded in the patient's permanent medical record; failure to do so will result in payment adjustment.
4What Your Clinical Note Must Show
To ensure eligibility for full payment, the following details must be documented:
- The exact start and stop times of the service in the patient's permanent medical record.
- Clearly indicate the purpose and findings of the assessment.
5Weak vs. Strong Note Examples
The strong note succeeds because it clearly indicates the time, thoroughness of the assessment, and ties findings to a specific diagnosis and treatment plan, fulfilling billing requirements.
Patient reviewed. Further investigation needed.
Reviewed patient admitted with suspected bacteremia. Conducted comprehensive medical specific assessment:
- Obtained complete history of presenting complaint, including onset and progression of symptoms.
- Detailed examination conducted focusing on potential infectious foci.
- Exam duration: Start 14:00 - End 14:45
- Diagnosis: Confirmed bacteremia, plan for targeted antimicrobial therapy initiated.
