OHIP Billing Guide🩺 ServicePublished 2026
W325

OHIP Billing Code W325: Limited Consultation for Medical Genetics and Genomics

Billing code W325 is used by specialists in Medical Genetics and Genomics for conducting limited consultations in non-emergency long-term care settings.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference119.40 CAD~3 min read

1What Is the W325 OHIP Code?

The W325 billing code is designated for a limited consultation within the specialty of Medical Genetics and Genomics. It applies specifically to non-emergency long-term care in-patient services, such as those provided in chronic care hospitals, convalescent homes, and nursing homes. Typically, this consultation addresses a focused question concerning a patient's established syndromic diagnosis on site.

The limited consultation is intended to provide basic assessment and advice quickly and efficiently and is particularly applicable in cases where moving the patient might not be feasible. This service streamlines genetic consultation for residents in long-term care, ensuring they receive specialized insights without the logistical challenges of visiting a clinic.

Due to the focused nature and specific setting, this billing code might be overlooked when broader or more complex consultations are erroneously anticipated, leading to missed opportunities for utilizing this efficient service.

2Related Codes

CodeNameFrequencyDescription
A220Special genetic consultationConsultations based on complexity, per case requirementsUsed for comprehensive genetic consultation in a hospital setting.
A223Extended special genetic consultationAs required for extended consultationsExtended consultation for complex genetic evaluations.
A225ConsultationGeneral consultation serviceStandard genetic consultation service.
A226Repeat consultationEligible for previously consulted casesUsed for follow-up consultations under the Genetics listing.

3Eligibility Requirements

The eligibility for billing W325 under OHIP requires:

  • The service must be conducted in non-emergency long-term care settings, which include chronic care hospitals, convalescent hospitals, nursing homes, homes for the aged, and designated chronic or convalescent care beds in hospitals or other facilities, except for palliative care beds.
  • The consultation must follow a written request from a referring physician, nurse practitioner, or dental surgeon linked to an insured dental procedure rendered in a hospital.
  • It should be substantiated by the complexity, seriousness, or obscurity of the case, or another opinion is expressly requested by the patient or their representative.

4What Your Clinical Note Must Show

1Consultation Documentation Requirements

Ensure that the following elements are included in each consultation record when billing with W325:

  • Written referral request from a qualified professional (physician, nurse practitioner, or dental surgeon).
  • Detailed assessment and opinion relevant to the patient’s condition.
  • Documentation of the specific syndromic diagnosis addressed.
  • Timing and setting of the consultation, verifying the non-emergency long-term care context.

5Weak vs. Strong Note Examples

The strong note specifically includes the referring physician's details, the reason for the referral, and the specific clinical context addressed, ensuring comprehensive documentation requirements are met. The weak note lacks specificity and details necessary for accurate billing.

Weak Note

Patient seen for consultation. Diagnosed with a genetic syndrome. Advised management.

Strong Note

Patient was referred by Dr. Smith for evaluation of confirmatory clinical signs related to [specific genetic syndrome]. Required detailed genetic history assessment.

  • Clear documentation of referring physician and reason for referral.
  • Specific description of patient's current genetic status and its management.

6Common Reasons This Code Is Missed

1
Unclear Referral Source
Failing to document the written referral request from an authorized professional.
2
Inadequate Diagnosis Details
Not providing enough detail on the syndromic diagnosis addressed.
3
Incorrect Setting
Attempting to bill for services outside of eligible long-term care settings.
4
Frequency Violations
Ignoring consultation frequency limits, leading to denials.
5
Inaccurate Documentation
Poor documentation resulting in reduced payment or claim rejection.
Document W325 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 reimbursement fee for W325?
The fee for billing W325 is CAD 119.40.
How often can W325 be billed for the same patient and diagnosis?
W325 can be billed once per two consecutive 12-month periods for the same patient and diagnosis.
What type of genetic cases typically warrant a limited consultation?
Cases with established syndromic diagnoses needing clarifications in a long-term care setting may warrant billing W325.
Is W325 applicable for consultations outside of long-term care facilities?
No, W325 is specifically for non-emergency long-term care settings like nursing homes and chronic care hospitals.
Who can refer a patient for a genetic limited consultation?
Eligible referrals can come from physicians, nurse practitioners, or specific dental surgeons performing hospital-related procedures.
Does the limited consultation require moving the patient to a genetics clinic?
No, W325 is specifically designed for consultations conducted on-site in long-term care facilities.
Can a consultation be billed if it doesn't meet all OHIP consultation criteria?
No, if all consultation criteria aren't met, reimbursement may be reduced to a lesser assessment fee.
What documentation is required to bill W325 effectively?
Written referral request, thorough assessment, genetic diagnosis details, and specific consultation notes are required.
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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