OHIP Billing Guide🩺 ServicePublished 2026
C034

C034 OHIP Billing Code: Enhance Patient Care with Specific Re-Assessment

C034 allows general surgeons to conduct a focused reassessment of hospital in-patients, ensuring tailored care for evolving conditions.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference36.75 CAD~3 min read

1What Is the C034 OHIP Code?

C034 covers specific re-assessment services rendered by specialists in general surgery. It involves a thorough examination and analysis of a patient's current medical state, particularly in response to changes during their hospital stay. For instance, this could include reassessing a patient due to altered abdominal examination findings or new imaging results. This assessment ensures that any changes in the patient's condition are promptly evaluated by the attending physician.

Often underutilized, the specific re-assessment is essential for tracking the progress of conditions that require close monitoring. However, it is sometimes missed in documentation when it should be used, especially during standard follow-up when there is a notable shift in the patient's condition linked to the initial diagnosis.

2Related Codes

CodeNameFrequencyDescription
A033Specific assessmentVariousInitial specific assessment by a general surgeon.
C033Specific assessmentVariousSpecific assessment similar to A033 but within a hospital setting.
A034Partial assessmentVariousPartial assessment outside hospital settings.
A935Special surgical consultationVariousComprehensive surgical consultation requiring lengthy, detailed expertise.

3Eligibility Requirements

To be eligible for billing under C034, the following criteria must be met:

  • It is available exclusively to general surgeons performing re-assessments on hospital in-patients.
  • Each re-assessment necessitates a complete and relevant history and physical examination of one or more systems.
  • It is crucial to record the start and end times of the assessment in the patient's permanent medical record to ensure payment.
  • C034 is limited to two specific re-assessments per patient, per physician within a consecutive 12-month period unless conducted for hospital admissions.
  • Virtual delivery is permissible through video, billed as C034A; however, telephone assessments are not eligible.

4What Your Clinical Note Must Show

1Documentation Requirements

Ensuring accurate and comprehensive documentation in compliance with OHIP standards is crucial.

  • Complete and relevant history and physical examination notes.
  • Record exact time the service started and ended.
  • Details of changes in patient condition prompting re-assessment.

5Weak vs. Strong Note Examples

The strong note provides detailed documentation of the specific re-assessment, including the reason for the assessment, detailed findings, and subsequent plan changes. The weak note lacks specifics and actionable data.

Weak Note

Patient reviewed again. No new issues. Plan continues as before.

Strong Note

Reviewed patient due to new onset of abdominal pain and change in bowel sounds. Conducted full abdominal examination and ordered updated imaging. Adjusted treatment plan for increased monitoring and potential surgical intervention.

  • Detailed patient symptoms
  • Complete abdominal examination
  • Imaging and treatment plan adjustments

6Common Reasons This Code Is Missed

1
Lack of Detailed Documentation
Specific changes in the patient’s condition must be documented, failing which the billing code might be overlooked.
2
Frequency Limit Unawareness
Misunderstanding the limitations—two assessments yearly per patient—can lead to incorrect billing.
3
Improper Time Recording
Neglecting to document start and end times can invalidate the billing of C034.
Document C034 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 C034?
The fee for billing C034 is CAD 36.75 plus any applicable premiums.
How many times a year can C034 be billed for the same patient?
C034 can be billed twice per patient per year, excluding hospital admission scenarios.
In what scenarios would a general surgeon use C034?
Typical cases include reassessing in-patients with changing abdominal examinations or after significant imaging findings.
Why would reassessing abdominal examination changes require C034?
Adjustments in treatment plans due to evolving abdominal symptoms or imaging justify the specific re-assessment.
Can C034 be billed for services delivered virtually?
Yes, C034 can be billed for virtual services delivered via video but not via telephone.
What prompts the need for a specific re-assessment in hospitalized patients?
Changes in clinical presentation, such as new pain or altered examination results, necessitate re-assessment.
How should a general surgeon document a specific re-assessment?
Document specific symptoms, examination findings, and any changes to the treatment plan.
In what situations would this specific re-assessment supersede a partial assessment?
When significant changes occur that necessitate a comprehensive evaluation beyond a routine check.
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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