OHIP Billing Guide🩺 ServicePublished 2026
C353

C353 OHIP Billing Code: Maximizing Assessment Opportunities in Urology In-Patients

OHIP C353 billing code allows urologists to perform specific assessments for non-emergency, in-patient cases. Essential for accurate diagnosis and treatment.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference51.45 CAD~3 min read

1What Is the C353 OHIP Code?

What is C353?

C353 is an OHIP billing code specifically for urologists conducting detailed assessments of non-emergency hospital in-patients presenting with urological symptoms like retention, catheter issues, or haematuria. The process involves a full history and examination relevant to the presenting complaint to ensure precise diagnosis or to rule out disease.

This code is crucial for urologists who need to address acute in-patient concerns effectively, helping direct subsequent patient care methods. However, it is often missed due to tight consultation schedules or when documentation requirements aren’t fully met.

2Related Codes

CodeNameFrequencyDescription
A353Specific assessment1 per patient per physician per 12 months if provided outside the hospitalParallel to C353, for out-patient consultations.
C354Specific re-assessmentVaries as deemed by patient need and diagnostic changeFor follow-up in-patient assessments after the initial specific assessment.
A354Partial assessmentLimited as per specific diagnosis and clinical management needsFor less comprehensive assessments performed outside hospital.
A935Special surgical consultationAs medically necessary for complex casesHigher fee for more comprehensive and complex evaluations, specific to surgical need.

3Eligibility Requirements

Eligibility Requirements for C353

To bill C353, the service must be rendered by a urology specialist in a hospital setting (non-emergency). Each patient is eligible for one specific assessment per physician per year. Exceptions allow for a second assessment if a different diagnosis is made or at least 90 days have passed and the patient is re-assessed during a hospital admission.

C353 can also be conducted virtually but only via video (C353A) and not by telephone. Proper documentation of service time (start and end) is mandatory in the patient's records. See General Preamble GP23 and GP7 for detailed instructions.

4What Your Clinical Note Must Show

1Time Documentation

Accurate time documentation is crucial for billing C353.

  • Record exact time service started and ended.
  • Include in patient's permanent medical record.

5Weak vs. Strong Note Examples

The strong note succeeds by providing a comprehensive patient history and specific examination details, aiding in justifying the billing. The weak note lacks this necessary detail.

Weak Note

Patient showed retention issues. Examined and advised.

Strong Note

Patient presented with urinary retention continued for 2 days, complex by current catheter malfunction. Detailed history taken; conducted physical examination focusing on bladder and catheter system.

  • Reviewed recent catheter insertions and complications.
  • Assessed functional status of urinary system.

6Common Reasons This Code Is Missed

1
Incomplete Documentation
Failing to record time or detailed findings can lead to claim rejections.
2
Overlooking Frequency Limits
Exceeding the allowed frequency without proper qualification results in reduced reimbursement.
3
Inappropriate Setting
Rendering the service outside the approved hospital setting leads to ineligibility for C353.
Document C353 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 maximum frequency for billing C353?
C353 can typically be billed once per patient per physician per 12 months, with a second instance only under defined conditions.
Can C353 be billed virtually?
Yes, but only via video under code C353A. Telephone consultations do not qualify.
What scenarios warrant a C353 billing in urology?
Patients presenting with acute urological issues like retention or catheter problems during in-patient stays may merit C353 billing.
When does a catheter problem in an admitted patient qualify for C353?
When the catheter issue is significant enough to require a detailed exam and history to assess, rule out complications, or adjust treatment.
How does C353 differ from a routine follow-up?
C353 involves a new or acute issue requiring comprehensive assessment, unlike routine follow-ups often covered under C354.
If a patient presents with haematuria during an unrelated admission, can C353 be billed?
Yes, if the haematuria is acute and requires examination to determine the cause during an in-patient hospital stay.
Is re-assessment within 90 days possible with C353?
No, unless it's a separate, unrelated diagnosis or a hospital admission qualifies the need.
What should be documented if performing C353 virtually via video?
Ensure all assessment details, patient interactions, and time logs are recorded as per in-person C353 standards.
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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