OHIP Billing Guide🩺 ServicePublished 2026
C266

C266 OHIP Billing Code: Essential Information for Paediatric Repeat Consultations

The C266 billing code applies to repeat paediatric consultations for in-patient settings, requiring a new written request from the referring healthcare provider.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference104.70 CAD~3 min read

1What Is the C266 OHIP Code?

What is C266?

C266 is an OHIP billing code used for repeat consultations in a paediatric hospital setting. This code applies specifically when a paediatrician is asked to reassess an in-patient they have previously seen, following a significant change in the patient's condition. A key requirement for billing C266 is a new written request from a referring physician, nurse practitioner, or dental surgeon. This ensures the repeat consultation is medically justified.

Paediatricians often encounter cases where a child's condition evolves during their hospital stay, necessitating a second evaluation. Understanding when to appropriately bill C266 can be challenging, particularly ensuring all documentation criteria are met, which can lead to missed billing opportunities.

2Related Codes

CodeNameFrequencyDescription
A260Special paediatric consultationAs requested per patient needUsed for complex or special paediatric consultations, reflecting higher complexity or intensity of service.
A265ConsultationAs requested per patient needStandard initial consultation provided in a paediatric setting.
A266Repeat consultationExempt from consultation limits; new written request requiredEquivalent service to C266, rendered outside the hospital in-patient environment.
A565Limited consultationAs requested per patient needCovers less comprehensive consultations in a paediatric setting.

3Eligibility Requirements

Eligibility Requirements

To bill for C266, the following criteria must be satisfied:

  • The service is a repeat consultation on a hospital in-patient paediatric case.
  • A new written request from the referring physician, nurse practitioner, or dental surgeon is mandatory.
  • It can be rendered virtually, but only via video, billed as C266A. Telephone consultations do not qualify.
  • C266 should only be used when the patient’s clinical condition has changed significantly, prompting the repeat consultation.

4What Your Clinical Note Must Show

1Documentation Requirements for C266

To ensure proper billing of C266, the following documentation is required:

  • New written request from a referring physician, nurse practitioner, or dental surgeon.
  • Documentation of the patient’s changed condition necessitating the repeat consultation.
  • Record of the consultation rendered, including findings and recommendations.

5Weak vs. Strong Note Examples

The strong note succeeds by explicitly detailing the clinical need for the repeat consultation, the source of the referral, and specifics of the patient’s condition and management. The weak note fails because it lacks specifics on the request or any notable changes in the patient's condition.

Weak Note

Reassessment of the patient completed today. No significant issues noted.

Strong Note

A repeat consultation was conducted following a written request from Dr. Smith due to a significant change in the patient's respiratory status. The patient presented with increased wheezing, and after evaluation, a new management plan was discussed and implemented.

  • Specific change in clinical status described
  • Reference to written request received
  • Detailed findings from the repeat consultation

6Common Reasons This Code Is Missed

1
Lack of New Written Request
Failing to obtain a new written request from the referring physician can invalidate the use of C266.
2
Inadequate Documentation of Changed Condition
Not sufficiently documenting a significant change in the patient’s condition can lead to billing rejections.
3
Virtual Consultation Errors
Billing C266A for consultations conducted by telephone instead of via video can result in rejected claims.
4
Confusion with Initial Consultation Codes
Mistaking an ongoing consultation as a repeat without a genuine new request undermines proper C266 billing.
Document C266 correctly — every time
Empathia's templates automatically structure your notes to capture every required element for audit-proof billing.

8Frequently Asked Questions

Can C266 be billed multiple times for the same admission?
Yes, as long as each consultation is based on a new written request and significant change in the patient’s condition.
Is a virtual C266 consultation allowed via telephone?
No, C266A covers video consultations only; telephone consultations do not qualify.
What types of conditions might require a repeat consultation in paediatrics?
Significant changes in a paediatric patient’s condition, such as severe asthma exacerbations or unexpected post-surgical complications, could necessitate a repeat consultation.
Can a paediatric nurse practitioner request a repeat consultation?
Yes, a paediatric nurse practitioner can submit a written request for a repeat consultation.
What patient scenarios typically trigger a repeat consultation request?
In paediatrics, a repeat consultation is often requested when an in-patient’s condition changes as a result of new symptoms or lack of expected improvement in conditions like pneumonia or seizures.
Does a repeat consultation require notification to the initial referring physician?
Providing feedback or consultation reports to the initial referrer can be beneficial, but it's not an explicit requirement for billing.
Are there specific documentation standards for a repeat consultation?
Yes, documentation must include the change in clinical status and the new written request, as per OHIP 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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