OHIP Billing Guide🩺 ServicePublished 2026
W165

W165 OHIP Billing Code: Nephrology Consultations for Long-Term Care

W165 is used by nephrologists for consultations in non-emergency long-term care settings, ensuring specialized care without patient relocation.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference180.75 CAD~4 min read

1What Is the W165 OHIP Code?

W165 is a billing code under the Ontario Health Insurance Plan (OHIP) specifically for nephrology consultations in non-emergency long-term care settings. This includes settings such as chronic care hospitals, nursing homes, and homes for the aged.

The typical scenario for using this code involves the nephrologist reviewing complex conditions like chronic kidney disease or assessing the appropriateness of dialysis plans for residents. This allows medical professionals to provide expert care without requiring the patient to leave the facility, facilitating continuity of care.

Often, this code may be missed due to misinterpretations of eligibility or documentation requirements, such as failure to obtain a proper written request from a referring healthcare provider.

2Related Codes

CodeNameFrequencyDescription
A160A160 Comprehensive nephrology consultationVariableA comprehensive consultation covering extensive nephrology assessments.
A165A165 ConsultationVariableUsed for nephrology consultations similar to W165, but not specific to long-term care.
A166A166 Repeat consultationAs needed, based on prior consultationsFor follow-up consultations on the same diagnosis.
A865A865 Limited consultationAs neededUsed for more restricted nephrology assessments.

3Eligibility Requirements

The W165 code is eligible for use in non-emergency long-term care in-patient services. This includes settings such as chronic care hospitals, convalescent hospitals, and nursing homes. It is crucial that the service is rendered following a written request from a referring physician, nurse practitioner, or dental surgeon.

Eligibility is contingent on certain conditions: the consultation must be for the same diagnosis only once per two consecutive 12-month periods, unless specific exceptions are met. These exceptions include if the second consultation is provided to a hospital inpatient or emergency department patient more than 12 but less than 24 months after the first.

A written request must clearly identify the consulting nephrologist and include patient information. Failure to meet these requirements may result in reduced payments.

4What Your Clinical Note Must Show

1Documentation Requirements for W165

Ensure all documentation requirements for billing W165 are met strictly and completely.

  • Maintain a copy of the signed written request from the referring provider in the patient's records.
  • The request must specify the consultant by name or specialty, and include the referring provider's name and billing number.
  • Patient identification by name and health number must be included.
  • Record the start and end time of the consultation in the patient's medical record.

5Weak vs. Strong Note Examples

The strong note succeeds by detailing the referral source, patient information, defined time, and a specific report of communications with the referring physician. The weak note fails due to missing key details like referral source and specific timing.

Weak Note

Completed consultation for CKD in nursing home. Referral details not documented.

Strong Note

Nephrology consultation conducted for CKD review per Dr. Smith's referral. Patient: John Doe, HN 123456789. Consultation from 2:00 PM to 3:00 PM as requested. Findings discussed with Dr. Smith.

  • Referring physician: Dr. Smith (Billing No: 12345)
  • Patient: John Doe, Health Number: 123456789
  • Consultation period: 2:00 PM - 3:00 PM
  • Findings shared: Review of CKD status and dialysis appropriateness.

6Common Reasons This Code Is Missed

1
Inadequate Documentation
Failure to track the documented referral source and consultation timing properly.
2
Misunderstanding Eligibility
Incorrect application of billing frequency limits leads to missed billing opportunities.
3
Virtual Service Misuse
Attempting to bill for services rendered via non-eligible mediums, such as telephone.
4
Misinterpretation of Unrelated Diagnosis
Misjudging which consultations meet criteria for an unrelated diagnosis.
Document W165 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 W165 consultations?
The W165 consultation is billed at a flat fee of CAD 180.75.
How often can W165 be billed for the same patient and diagnosis?
W165 can be billed once per two consecutive 12-month periods per patient and diagnosis, with exceptions allowing a second service under specified conditions.
What types of nephrology cases are relevant for W165 billing?
Typical cases include chronic kidney disease management and assessing dialysis appropriateness for residents in long-term care settings.
Can W165 be used for nephrology consultations related to fluid imbalance?
Yes, fluid imbalance assessments in long-term care settings can qualify for W165 billing.
Who must refer the patient for a consultation to bill under W165?
A referral must come from a physician, nurse practitioner, or dental surgeon to qualify for W165 billing.
If a patient was initially seen in a nursing home, can W165 be used again if they are referred 18 months later from the hospital?
Yes, if the referral comes 12 to 24 months after the first consultation and the patient is now an inpatient or treated in the emergency department.
Can virtual consultations for W165 be billed if conducted via phone?
No, W165 can be billed for virtual consultations only when conducted through video, not by telephone.
How should a nephrologist record time for a consultation billed under W165?
The time when the service started and ended must be recorded in the patient's permanent medical record.
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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