OHIP Billing Guide🩺 ServicePublished 2026
A580

A580 OHIP Billing Code: Comprehensive Internal Medicine Consultation

The A580 code refers to a comprehensive internal medicine consultation performed by a specialist in pathology. It is typically used for complex cases involving laboratory abnormalities.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference342.25 CAD~4 min read

1What Is the A580 OHIP Code?

The A580 code allows pathologists to bill OHIP for comprehensive internal medicine consultations. This service is typically rendered for cases involving complex laboratory abnormalities that require detailed interpretation alongside the patient's clinical condition.

Pathologists may engage in such consultations both in-person and virtually via video, provided the eligibility criteria are met. A comprehensive internal medicine consultation must address the intricacy, seriousness, or obscurity of a patient's condition that is specifically linked to pathology results.

Healthcare providers may overlook this billing code because the required documentation and eligibility conditions are stringent. Proper understanding and implementation of these aspects ensure accurate billing and reimbursement.

2Related Codes

CodeNameFrequencyDescription
A285ConsultationFrequentGeneral consultation in Laboratory Medicine.
A286Limited ConsultationFrequentFor limited scope consultations.
A585Diagnostic ConsultationFrequentUsed for consultations focused on diagnostics.
A586Repeat ConsultationFrequentFor repeat consultations as part of follow-up care.

3Eligibility Requirements

To bill for A580 under OHIP, the following eligibility criteria must be met:

  • A written consultation request must be received from a referring physician, nurse practitioner, or dental surgeon, identifying the consultant by name and/or specialty, and delineating the reason for the referral.
  • The consultation must involve personal interaction and a written report provided back to the referring entity.
  • Time spent must be recorded accurately, noting the start and stop times in the patient’s medical record.
  • The service frequency is limited to one per patient per 24-month period unless specific exceptions are satisfied, such as rendering an additional consultation due to hospital inpatient status after 12 but within 24 months or involving a different, unrelated diagnosis.
  • Virtual consultations are permitted via video under the A580A code but not by telephone.

4What Your Clinical Note Must Show

1Medical Record Documentation

The medical record for A580 must capture specific elements to ensure service eligibility.

  • Start and stop times of the consultation must be documented.
  • A copy of the written request for consultation must be maintained.
  • The consultation involves a written report back to the referring party.

5Weak vs. Strong Note Examples

The strong note excels because it includes comprehensive details about the patient's condition, clear start and stop times, and identifies the referring physician, ensuring compliance with OHIP requirements.

Weak Note

Reviewed lab results for the patient. Consulted in-person. Time noted in the chart.

Strong Note

Reviewed abnormal CBC results with clinical indications of neutropenia after referral from Dr. Smith (ID 123456). Patient consulted via video for 60 minutes starting at 10:00 AM, ending at 11:00 AM. Comprehensive recommendations and findings documented and sent to Dr. Smith.

  • Specific findings of the laboratory tests and patient interaction
  • Exact start and stop times
  • Referral specifics with referring physician's name and ID

6Common Reasons This Code Is Missed

1
Time Documentation Errors
Lack of accurate recording of start and stop times can lead to billing code misapplication.
2
Improper Referral Documentation
Missing the written consultation request or insufficient details often result in billing rejections.
3
Frequency Limit Exceeded
Consultations billed more frequently than allowed can be rejected if not properly justified.
4
Virtual Consultation Errors
Video consultations mistakenly billed as telephone consultations are not payable under A580.
5
Complexity Misjudgment
Billing for routine cases rather than genuinely complex or serious conditions may lead to reimbursement challenges.
Document A580 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 the A580 billing code?
The fee for A580 is CAD 342.25 as listed in the OHIP Schedule of Benefits.
Can the A580 consultation be billed for a virtual visit?
Yes, A580 consultations can be billed for virtual video visits under code A580A.
What types of cases typically qualify for A580 in pathology?
Cases involving complex laboratory interpretations, such as unexplained hematological abnormalities, qualify for A580 consultations.
How does A580 specifically apply in a pathology setting?
Pathologists utilize this code for consultations that require integrating complex lab results with clinical data.
What is a typical patient scenario for an A580 consultation?
A typical scenario might involve reviewing abnormal lab results in detail after a referral for a potential hematological disorder.
Under what conditions can a second A580 consultation be billed?
A second A580 consultation can only be billed if performed over 12 months but within 24 months after the first, specifically in inpatient or emergency contexts.
Why might a patient be referred to a pathologist for A580 services?
Patients are often referred when there are abnormal lab results needing detailed analysis in addition to clinical presentation.
What should be included in the consultation report for A580?
The report should include detailed findings, interpretations, and recommendations sent back to the referring physician.
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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