OHIP Billing Guide🩺 ServicePublished 2026
A720

A720 OHIP Billing Code: Comprehensive Occupational Medicine Consultation

The A720 code allows occupational medicine specialists to conduct detailed consultations on work-related health issues, with a minimum of 75 minutes spent with the patient.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference342.25 CAD~3 min read

1What Is the A720 OHIP Code?

The A720 billing code pertains to a comprehensive occupational medicine consultation, designed to address complex work-related health issues. This service requires a specialist in occupational medicine to spend a minimum of 75 minutes in direct consultation with the patient. Typical scenarios for this consultation include evaluating fitness for work or developing a complex return-to-work plan.

This code ensures thorough assessments are available for cases involving detailed workplace histories or exposures, aligning with the demands of occupational health standards. It is crucial due to the complexity and specificity of work-related health cases. This comprehensive consultation is often missed when billing due to incomplete documentation or misinterpretation of eligibility criteria.

2Related Codes

CodeNameFrequencyDescription
A725ConsultationVariesA general consultation within occupational medicine.
A726Repeat ConsultationVariesA follow-up consultation for continued care.
A925Limited ConsultationVariesA short evaluation for specific occupational health issues.
C720Comprehensive Occupational Medicine ConsultationVariesThe hospital in-patient equivalent of A720.

3Eligibility Requirements

To bill under the A720 code, the following eligibility criteria must be met:

  • Referral Requirement: The service must be rendered following a written request from a referring physician, nurse practitioner, or dental surgeon.
  • Time Requirement: The consultation must involve a minimum of 75 minutes in direct patient contact, exclusive of other billable services.
  • Documentation: The start and stop times must be recorded in the patient's permanent medical record.
  • Frequency Limits: Generally, only one A720 consultation per patient, per physician, for the same diagnosis, is allowed in two consecutive 12-month periods. There can be exceptions, such as an additional consultation in a hospital setting or if involving an unrelated diagnosis.
  • Virtual Care: A720 can be rendered virtually via video only and billed as A720A.

4What Your Clinical Note Must Show

1Documenting Consultations

Ensure that your documentation meets the required standards to avoid adjustments.

  • Record explicit start and stop times for the consultation in the patient's medical record.
  • Maintain a copy of the consultation request from the referring provider.
2Minimum Time Requirement

The consultation must meet the minimum 75-minute direct contact time with the patient.

5Weak vs. Strong Note Examples

The strong note provides precise timing and retains a copy of the referral, which ensures compliance with billing requirements.

Weak Note

The consultation lasted long enough to discuss the main issues. Referred by Dr. Smith.

Strong Note

Conducted a thorough consultation addressing the patient's occupational health issues. Start: 10:00 AM, End: 11:30 AM. Referred by Dr. Smith with referral note documented in chart.

  • Clearly documented start and end times.
  • Referral request detailed and on file.

6Common Reasons This Code Is Missed

1
Incomplete Time Documentation
Failure to document exact start and stop times in the patient's records.
2
Inadequate Referral Details
Missing signed consultation request from the referring provider.
3
Misunderstanding Code Frequency
Billing more frequently than allowed for the same diagnosis.
Document A720 correctly — every time
Empathia's templates automatically structure your notes to capture every required element for audit-proof billing.

8Frequently Asked Questions

How often can A720 be billed for the same patient?
A720 can generally be billed once per patient, per diagnosis, in two consecutive 12-month periods, unless specific exceptions are met.
Can A720 be billed for telephone consultations?
No, A720 can only be billed for virtual consultations conducted via video, under the designation A720A.
What kinds of occupational health issues warrant an A720 consultation?
Complex cases such as detailed assessments of work-related exposures or fitness for work.
What distinguishes A720 from A725 consultations?
A720 involves more comprehensive, time-intensive evaluations compared to the general occupational consultations billed under A725.
Who can refer a patient for an A720 consultation?
Referrals must come from a physician, nurse practitioner, or dental surgeon involved in related healthcare procedures.
How is patient time calculated for an A720 consultation?
Only direct patient-facing time counts towards the 75-minute requirement; non-patient activities like chart review are excluded.
Can A720 be used for annual physicals?
No, A720 is specifically for complex occupational health consultations and not for routine examinations.
What if my consultation exceeds the billing limits?
Consultations exceeding frequency limits will be reimbursed at a lesser rate, such as a general or specific assessment rate.
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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