OHIP Billing Guide🩺 ServicePublished 2026
C470

C470 OHIP Billing Code: Maximize Reimbursement for Comprehensive Respiratory Consultations

C470 is specific to comprehensive respiratory disease consultations for inpatients billed by respirologists, ensuring thorough patient evaluations and management.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference342.25 CAD~3 min read

1What Is the C470 OHIP Code?

C470 represents a comprehensive consultation for respiratory diseases and is primarily utilized in hospital in-patient settings. This code is applicable when respirologists are tasked with evaluating and managing complex respiratory issues such as respiratory failure, complicated pneumonia, or new pleural effusions.

The service requires a significant investment of time, typically 75 minutes or more, directly with the patient. Unlike some codes, C470 assures the patient receives an in-depth assessment, treatment planning, and follow-up recommendations. It's often missed in filings due to its specific eligibility and documentation requirements, especially when not all consultation elements are documented comprehensively.

2Related Codes

CodeNameFrequencyDescription
A470Comprehensive respiratory disease consultationAs per C470 conditionsEquivalent service rendered outside of the hospital setting.
A475ConsultationOne service per patient, per conditionGeneral consultation for respiratory disease.
A476Repeat consultationIn accordance with specific conditionsFor follow-up within the allowed frequency limitations.
A575Limited consultationAs per individual patient needsFor simpler or shorter consultation needs.

3Eligibility Requirements

To bill C470, the following requirements must be met:

  • Setting: The service is rendered to hospital in-patients.
  • Duration and Contact: A minimum of 75 minutes of direct patient contact, exclusive of other billable interventions.
  • Consultation Request: The consultation must follow a written request from a referring physician, nurse practitioner, or dental surgeon, specifying the patient's diagnosis and reason for referral.
  • Documentation: The start and end times of the consultation must be recorded in the patient's permanent medical record.

This service is limited to one service per two consecutive 12-month periods per diagnosis unless the patient is seen again in an emergency or in-patient setting between 12 to 24 months after the first consultation for the same diagnosis., excluiring subsequent consultations within this period without a new unrelated diagnosis will lead to C470 being billed at a lesser rate.

4What Your Clinical Note Must Show

1Documentation Essentials

Ensure these details are accurately recorded to comply with C470 requirements:

  • Start and end time of the consultation.
  • Written consultation request with details about the referring practitioner and patient's condition.
  • A detailed report including findings, professional opinions, and treatment recommendations sent to the referring provider.

5Weak vs. Strong Note Examples

Weak Note

Consulted patient regarding breathing issues.

Review of history and symptoms conducted.

Document C470 correctly — every time
Empathia's templates automatically structure your notes to capture every required element for audit-proof billing.
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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