OHIP Billing Guide🩺 ServicePublished 2026
C905

C905 OHIP Billing Code: Streamlined Consultation for Family Physicians

The C905 code enables family physicians to bill for limited consultations for hospital in-patients. Often used to address specific, focused queries.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference81.25 CAD~3 min read

1What Is the C905 OHIP Code?

What is the C905 Billing Code?

The C905 code under OHIP allows family physicians to bill for a limited consultation. It represents the least demanding tier of consultations within a hospital setting, typically involving a single, focused question that does not require a full consultative assessment. For instance, a C905 may be used when a family physician is asked to confirm a patient's community medication list or previous workup without performing a comprehensive consultative evaluation.

Family physicians will often utilize the C905 code when their expertise is needed to answer a specific inquiry regarding an inpatient’s existing medical regimen or history. This type of consultation is more restricted in scope and time involvement compared to a comprehensive consultative service.

2Related Codes

CodeNameFrequencyDescription
A914GP focused practice comprehensive consultation by VideoOnce per 12-month periodA comprehensive consultation via video for intricate cases.
A006Repeat consultationAs needed for ongoing careA follow-up consultation for continuing assessments.
A010GP focused practice consultation by VideoOnce per differing diagnosis per 12 monthsA focused consultation via video for tailored advice.
A011GP focused practice repeat consultation by VideoAs needed for ongoing careA follow-up video consultation to reassess treatments.

3Eligibility Requirements

Eligibility Requirements for C905

For a service to qualify as a limited consultation under C905, certain criteria must be met:

  • Referral is Essential: The consultation must be requested in writing by a referring physician, nurse practitioner, or dental surgeon in connection with an insured dental procedure rendered in a hospital. The request should be based on complexity, seriousness, or a need for another opinion.
  • Nature of the Consultation: The service should specifically involve a limited assessment rather than a comprehensive one. It should answer a focused query and not entail the time investment and depth of a full consultation.
  • Frequency Limitations: The limited consultation can be billed once per two consecutive 12-month periods for the same patient, physician, and diagnosis; however, separate consultations for distinct diagnoses can be billed once per 12 months.

4What Your Clinical Note Must Show

1Documentation Essentials for C905

Ensure all necessary elements are captured for billing a limited consultation.

  • A written request from the referring practitioner is included in the patient's chart.
  • Clear documentation of the specific assessment and advice provided.
  • Record of time spent on the consultation and any unique elements justifying the limited nature of the consult.

5Weak vs. Strong Note Examples

The strong note succeeds by providing detailed documentation of the consultation purpose, process, and outcome, while the weak note lacks specificity and depth.

Weak Note

Consulted by cardiology team regarding patient medication list. Provided advice.

Strong Note

Consulted by cardiology on Sept 1, 2023, regarding patient's community medication list.

Reviewed medical history and confirmed current prescriptions with patient and pharmacy, clarifying dosages and adherence.

  • Advised on medication interactions.
  • No changes recommended based on this focused assessment.

6Common Reasons This Code Is Missed

1
Inadequate Documentation
Failure to include a clear description of the limited nature of the consultation and referral specifics.
2
Lack of Written Referral
Billing without a documented request from a qualified referring practitioner.
3
Incorrect Diagnostic Continuity
Attempting to bill within a prohibited frequency for the same diagnosis and patient.
Document C905 correctly — every time
Empathia's templates automatically structure your notes to capture every required element for audit-proof billing.

8Frequently Asked Questions

How frequently can C905 be billed for the same patient and diagnosis?
The C905 code can be billed once per two consecutive 12-month periods for the same patient and diagnosis.
What types of inquiries qualify for a limited consultation in family medicine?
Common inquiries include affirming a patient's community medication list or prior diagnostics for inpatients.
What documentation is necessary for billing C905?
A written request from the referring practitioner and comprehensive patient interaction notes are needed.
Can the C905 code be billed if the patient has undergone a complexity change?
If the consultation is based on a new, unrelated diagnosis, it may be billed once every 12 months.
Which professions can refer patients for a C905 consultation?
Referrals can come from physicians, nurse practitioners, or dental surgeons for insured procedures in hospitals.
How does a limited consultation differ from a repeat consultation like A006?
A limited consultation is a focused query, whereas a repeat consultation involves ongoing care evaluations.
When is it appropriate to use the limited consultation code?
Use C905 when the consultation is focused and does not require comprehensive evaluation.
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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