OHIP Billing Guide🩺 ServicePublished 2026
A045

A045 OHIP Billing Code: Essential Consultation for Neurological Surgery

The A045 billing code allows neurosurgeons to bill for essential consultations rendered virtually or in-office, aiding patient assessment and management decisions.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference145.60 CAD~3 min read

1What Is the A045 OHIP Code?

Description

The A045 billing code is utilized for consultations in neurosurgery, often when assessing complex cases such as disc herniations or intracranial lesions. It aids in determining if surgery or surveillance is necessary.

A consultation involves a comprehensive assessment following a written request from a referring professional, aimed at forming a surgical management plan.

Clinical Context

In neurosurgery, typical cases include evaluating patients with slow-growing tumors or incidental aneurysms to determine if they warrant surgical intervention.

2Related Codes

CodeNameFrequencyDescription
A935Special surgical consultationAs specifiedEnhanced consultations requiring advanced case evaluations.
C935Special surgical consultationAs specifiedA variation for hospital-based services, demanding similar elevated care.
A046Repeat consultationAs specifiedA repeat evaluation of a previously assessed patient case.
C045ConsultationAs specified, in-hospital usageThe equivalent of A045 when performed for hospital inpatients.

3Eligibility Requirements

Eligibility Requirements

Per OHIP guidelines, A045 eligibility demands a written consultation request from a referring MD, NP, or DS. The consultation must involve documenting findings and opinions in a complete report to the referrer.

  • Services must be provided within specified frequency limits to qualify for payment.
  • Unrelated diagnoses permit one service every 12 months, with exceptions for inpatient or emergency consultations under stipulated conditions.

Consultations must not be billed if referrer requests are retrospectively sought following the service provision.

4What Your Clinical Note Must Show

1Documentation Essentials

Ensure all required elements are present in the consultation documentation. This includes:

  • Signed consultation request from a qualifying professional.
  • Detailed report to the referrer outlining findings, advice, and proposed treatment.
  • Time records of consultation start and end times.

5Weak vs. Strong Note Examples

The strong note succeeds by providing complete documentation, including detailed clinical insights and precise timekeeping, unlike the weak note, which lacks specificity and documentation integrity.

Weak Note

Consultation with the patient, discussed options.

Strong Note

Comprehensive assessment conducted for referred patient with disc herniation. Detailed discussion held regarding surgical options versus continued surveillance. Written report with clinical findings and recommendations sent to referring physician.

The consultation involved an evaluation period starting at 08:45 and ending at 09:30, documented accordingly.

  • Signed request from Dr. Smith, NP.
  • Patient details fully recorded (Name, Health Number) with diagnosis and consultation details.

6Common Reasons This Code Is Missed

1
Failure to Retain Written Request
Neglecting to retain the signed consultation request nullifies eligibility.
2
Incorrect Frequency Application
Exceeding the billing frequency without exceptions results in non-payment.
3
Incomplete Documentation
Failure to encapsulate the consultation process and outcomes in detailed records can invalidate the claim.
Document A045 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 billing code A045 under OHIP?
The fee for A045 is CAD 145.60 per consultation.
Can A045 be billed more than once in a 24-month period?
Typically, no, unless the second consultation is more than 12 months after the first, specifically for inpatients or emergencies.
What kinds of cases qualify for an A045 consultation in neurosurgery?
Cases involving complex decisions between surveillance and surgery, such as incidental aneurysms, are typical candidates.
Is an incidental aneurysm evaluation eligible for an A045 consultation?
Yes, evaluating whether an incidental aneurysm requires surgical intervention is an eligible scenario.
What document specifics are required for billing A045?
A thorough written report, time records, and a valid consultation request are mandatory.
How should I handle the referral request for it to be valid?
Ensure it is a written request, signed by a referring physician, nurse practitioner, or dental surgeon with all necessitated information.
Can A045 consultations be conducted virtually?
Yes, but they must be conducted via video to qualify, as telephone consultations are not covered.
What distinguishes a strong note from a weak note in A045 documentation?
A strong note includes detailed clinical findings, time records, and reference specifics, while a weak note might lack thoroughness and exactitude.
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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