OHIP Billing Guide🩺 ServicePublished 2026
C575

C575 OHIP Billing Code: Streamlining Limited Consultations for Respirologists

The C575 code for Limited Consultation is used by respirologists to provide concise, targeted assessments for hospital in-patients with specific respiratory questions.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference115.30 CAD~3 min read

1What Is the C575 OHIP Code?

What is the C575 Code?

The C575 billing code under OHIP represents a limited consultation in the field of respirology. This code is specifically applicable to hospital in-patient settings where a respirologist provides a focused, time-efficient consultation on a precise respiratory issue. Unlike a full respirology consultation, the limited consultation is intended for targeted inquiries such as the management of a pleural effusion or decision-making regarding home oxygen planning prior to patient discharge.

Despite being less exhaustive than a comprehensive consultation, a limited consultation is critical for delivering expert opinions on specific issues, ensuring that appropriate actions are taken efficiently. Physicians may overlook this billing code when focused on broader assessments, potentially missing the opportunity for efficient resource allocation.

2Related Codes

CodeNameFrequencyDescription
A470Comprehensive respiratory disease consultationOne per patient, per two consecutive 12-month periods for the same diagnosisA comprehensive overview of the patient's respiratory condition including extensive diagnostic review.
A475ConsultationOne per patient, per two consecutive 12-month periods for the same diagnosisGeneral consultation for respiratory issues, broader than a limited consultation.
A476Repeat consultationEligible when the patient has been referred again for the same diagnosis after a prior consultation.Follow-up consultation for the same diagnosis within specific time limits.
A575Limited consultationOne service per patient, per two consecutive 12-month periods, or for unrelated diagnoses.Equivalent of C575 for out-patient settings.

3Eligibility Requirements

Eligibility Requirements for C575

  • Setting: Limited consultation must occur in a non-emergency hospital in-patient setting listed under the Respiratory Disease category.
  • Consultation Initiation: Must follow a written referral from a physician, nurse practitioner, or dental surgeon citing the need for a respirologist's expert opinion on a complex, serious, or obscure case.
  • Virtual Delivery: C575 services can be delivered virtually via video, billed as C575A, but telephone consultations do not qualify.
  • Frequency: Eligible for one service per two consecutive 12-month periods for the same patient and diagnosis. An additional consultation within 12 months is allowed only for unrelated diagnoses.
  • Documentation: Refer to General Preamble GP40 to GP48 for hospital in-patient services and GP65 to GP78 for applicable emergency guidelines.

4What Your Clinical Note Must Show

1Documentation for C575 Billing

Ensure the following documentation is completed for C575 billing:

  • A written referral from a qualified referring entity (physician, nurse practitioner, or dental surgeon).
  • Detailed clinical notes outlining the specific respiratory issue addressed.
  • Confirmation of the setting as a non-emergency hospital in-patient service.
  • If applicable, virtual consultation documentation verifying video session.

5Weak vs. Strong Note Examples

The strong note ensures detailed documentation, aligning patient specifics with clear assessment findings and recommendations, unlike the vague description in the weak note.

Weak Note

Consulted on patient for respiratory issues. Discussed possible interventions.

Strong Note

Limited consultation on 09/11/2023.

Referral from Dr. Smith: Evaluate pleural effusion management.

Assessment: Pleural effusion not requiring immediate drainage.

Recommendations: Monitor effusion size; re-evaluate in 1 week if symptomatic.

Conclusion: Conveyed findings and plan to ward team.

  • Patient specifics: Name, DOB, hospital ID.
  • Detailed clinical finding and justification for consultation.
  • Written referral attached.

6Common Reasons This Code Is Missed

1
Misunderstanding Consultation Type
Physicians may confuse limited consultation with a full assessment, resulting in incorrect code usage.
2
Inadequate Documentation of Referral
Failing to secure or document a proper referral can invalidate the service, resulting in reduced fees.
3
Overlooking Frequency Restrictions
Not adhering to the frequency limitations leads to billing rejections or audits, particularly if related diagnoses are insufficiently documented.
Document C575 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 billing code C575?
The fee for a C575 Limited Consultation is CAD 115.30.
Can C575 be billed for telephone consultations?
No, C575 can only be billed for video consultations when delivered virtually.
What types of respirology cases qualify for a limited consultation?
Cases such as evaluating the need for pleural effusion drainage or assessing home oxygen requirements are suitable.
When might a respirologist choose a comprehensive consultation instead?
For a broad, multi-faceted assessment of a complex respiratory condition requiring extensive evaluation.
How does a patient typically get referred for a limited consultation?
Through a formal written referral from a physician, nurse practitioner, or dental surgeon if their professional knowledge suggests it.
What should be documented to justify billing a limited consultation?
Detailed notes of the focused assessment question, findings, recommendations, and accompanying referral are necessary.
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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