OHIP Billing Guide🩺 ServicePublished 2026
C036

C036 OHIP Billing Code: Streamline Follow-Up Care in General Surgery

The C036 code allows general surgeons to bill repeat consultations for hospital in-patients, facilitating essential follow-up assessments.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference76.45 CAD~3 min read

1What Is the C036 OHIP Code?

What is C036?

C036 is specifically designed for a repeat consultation in the context of general surgery. It is used when a general surgeon is called back to evaluate an in-patient after a change in their condition, such as a rising white count or new peritoneal signs.

A repeat consultation must involve a new written request from the referring healthcare provider, ensuring that the consultation addresses the patient's evolving clinical needs. The complexity and specific requirements to bill this code mean it can occasionally be overlooked, particularly when follow-ups are perceived as routine monitoring rather than distinct, billable consultations.

2Related Codes

CodeNameFrequencyDescription
A935Special surgical consultationVaries by serviceHigher complexity consultation specific to surgery.
C935Special surgical consultationVaries by serviceEquivalent to A935 but for settings where C-prefixed codes apply.
A035ConsultationLimited to once per two consecutive 12-month periods, barring exceptions.Standard consultation in general surgery.
A036Repeat consultationSame as C036 but for outpatient settings.Repeat consultation outside hospital inpatient settings.
C036Repeat consultationNo frequency cap when valid documentation is provided.Follow-up consultation for inpatients previously seen by the consultant.

3Eligibility Requirements

Eligibility Requirements

To bill the C036 code for a repeat consultation in Ontario:

  • New Written Request: Each repeat consultation requires a new written request from the referring physician, nurse practitioner, or dental surgeon.
  • Written Request Retention: A copy of this request must be kept in the consulting physician's medical record unless the consultation occurs in a hospital, long-term care institution, or multi-specialty clinic where common medical records are maintained.
  • Virtual Consultations: C036 can be billed as C036A for virtual consultations, but these must be conducted via video as telephone consults do not qualify.

4What Your Clinical Note Must Show

1Documentation Requirements for C036

Ensure these elements are recorded:

  • A new written request from the referring provider.
  • Retention of the request in patient records unless in shared record settings.

5Weak vs. Strong Note Examples

The strong note includes detailed clinical observations and context for the follow-up, addressing the specific changes that necessitated the repeat consultation, demonstrating compliance with OHIP requirements.

Weak Note

Patient seen for follow-up consultation.

Discussed ongoing care.

Strong Note

Patient presented with new peritoneal signs.

Re-assessment confirmed indication for surgery due to worsening condition.

Consultation requested by Dr. Smith due to change in clinical status.

  • Request for repeat consultation from referring physician documented.
  • Detailed assessment and plan recorded.

6Common Reasons This Code Is Missed

1
Lack of New Written Request
Sometimes the requirement for a new request is overlooked, leading to billing rejections.
2
Inadequate Documentation
Failure to retain or misfile the consultation request can result in a downgraded fee.
3
Misinterpretation of Eligibility
Confusion about virtual delivery limits (video only) can result in improper billing.
4
Confusion with Standard Follow-up
Routine follow-ups might be mistaken for repeat consultations, leading to missed billing opportunities.
Document C036 correctly — every time
Empathia's templates automatically structure your notes to capture every required element for audit-proof billing.

8Frequently Asked Questions

What is the fee for C036 under OHIP?
The fee is CAD 76.45 per repeat consultation.
Can C036 be billed for video consultations?
Yes, but only when delivered via video as C036A. Telephone consults are ineligible.
When should a general surgeon use C036?
When re-consulting on an in-patient showing new symptoms such as rising white count or failing non-operative management.
What differentiates C036 from a standard follow-up in general surgery?
C036 requires a new request and addresses significant clinical changes needing surgical reassessment.
What clinical situations might justify a repeat consultation under C036?
A patient with a post-operative complication requiring re-evaluation might qualify for this billing code.
Why might a repeat consultation request be denied?
Denials might occur due to missing new request documentation or if a virtual consult was not conducted via video.
How does the repeat consultation process work across specialties?
While the mechanics (new request and documentation) of billing C036 are uniform, clinical differences hinge on the specialty context and patient condition changes.
In what patient scenario is C036 applicable?
For a hospital in-patient needing surgical reassessment after another physician treated them for an acute change in condition.
Disclaimer: This article is intended as a general educational resource for physicians and billing staff. It does not constitute billing advice or a definitive interpretation of the OHIP Schedule of Benefits. Always verify current billing codes, eligibility criteria, and documentation requirements directly against the official Schedule of Benefits or consult with a qualified medical billing specialist.
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