OHIP Billing Guide🩺 ServicePublished 2026
C225

C225 OHIP Billing Code: Efficient Consultations in Medical Genetics

C225 is billed for consultations involving medical genetics for hospital in-patients in Ontario. This service is integral for managing complex cases requiring specialist genetic evaluation.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference190.50 CAD~3 min read

1What Is the C225 OHIP Code?

C225 is a billing code under OHIP for consultations by qualified medical genetics and genomics specialists. It applies specifically to hospital in-patient settings. Typically, these consultations are requested for newborns or adults with complex genetic disorders, such as dysmorphic features, unexplained metabolic issues, or suspected inherited conditions.

The use of C225 is integral in ensuring patients get specialized genetic evaluation and management, often impacting diagnostic and therapeutic decision-making. Despite its importance, this code can be overlooked if the requesting provider's documentation or the consultant's report does not meet stringent OHIP standards.

2Related Codes

CodeNameFrequencyDescription
A220Special genetic consultationConsult one time per two consecutive 12-month periods, subject to the same diagnosis rules.This code is used for more complex genetic consultations requiring additional expertise.
A223Extended special genetic consultationSimilar frequency limitations apply as with A220, subject to the same diagnosis criteria.Used for extensive consultations involving significant complexity or time commitments.
A225ConsultationSame frequency limitations as C225, but for outpatient settings.This code parallels C225 but applies to outpatient services.
A226Repeat consultationUsed for follow-up consultations within specified rules.Covers a follow-up evaluation after the initial consultation under certain conditions.

3Eligibility Requirements

C225 is eligible for billing when a consultation is requested by a referring physician, nurse practitioner, or dental surgeon concerning an insured dental procedure performed in a hospital. It must follow a written request and include a detailed report back to the referrer.

Consultations with the same diagnosis for the same patient are limited to one service every two consecutive 12-month periods, with some exceptions. If a second consultation is necessary and occurs more than 12 but less than 24 months after the initial service, it is eligible if provided to hospital inpatients or patients in emergency settings.

For unrelated diagnoses, a new consultation can be billed once every 12 months. Most crucially, the consultation must not occur post-fact with an instructed request for consultation backdating, as this disqualifies the application.

4What Your Clinical Note Must Show

1Essential Documentation for C225 Billing

For successful billing of C225, adhere to these documentation guidelines:

  • A written request from the referring source clearly identifying the consult need.
  • The consultant's detailed written report must be submitted back to the referrer.
  • Documentation must include the date and duration of the consultation service.

5Weak vs. Strong Note Examples

The strong note succeeds due to its detailed description of the consultation, specified findings, and a thorough written report, while the weak note lacks sufficient detail and documentation.

Weak Note

Consultation performed as requested. Discussed genetic concerns with the family.

Strong Note

Complete genetic consultation conducted following Dr. Smith's request. Reviewed patient's clinical history and conducted a physical assessment. Findings include specific dysmorphic features, suggestive of a possible genetic disorder. Recommended genetic testing as outlined in the attached report.

Detailed discussion held with the family regarding potential hereditary conditions. Report to Dr. Smith includes analysis, recommendations, and suggested next steps.

  • Dr. Smith is the attending pediatrician.
  • Patient presents with notable dysmorphic features suggesting an underlying syndrome.
  • Comprehensive written report follows.

6Common Reasons This Code Is Missed

1
Inadequate Documentation
Failure to provide a comprehensive written report or documentation of the referral can lead to denied claims.
2
Exceeding Frequency Limits
Billing more than one consultation for the same diagnosis within restricted periods without proper exception can result in billing issues.
3
Request for Retroactive Referral
Consultations requested after service delivery, without prior written referral, are not eligible for payment.
Document C225 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 C225?
The fee for C225 is CAD 190.50.
Can C225 be billed for telephone consultations?
No, C225 can only be billed for video consultations in virtual care.
What type of patient case typically requires a C225 consultation in medical genetics?
Patients presenting with dysmorphic features or unexplained metabolic issues often require a C225 consultation.
When is a 'Special genetic consultation' (A220) used instead of a C225?
A220 is used for more complex cases requiring in-depth genetic evaluation and expertise.
How does one determine if a second consultation is justified for the same diagnosis?
A second consultation occurs if the service is more than 12 months but less than 24 months after the first and is for in-patient or ED contexts.
What presenting symptoms might lead to a C225 referral in a newborn?
Significant dysmorphic features or metabolic presentations in a newborn are typical reasons for referrals.
Who can refer a patient for a C225 consultation?
Referrals can be made by a physician, nurse practitioner, or dental surgeon, based on specific medical insights.
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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