OHIP Billing Guide🩺 ServicePublished 2026
A150

A150 OHIP Billing Code: Maximize Your Billing for Complex Endocrine Consultations

The A150 code allows endocrinologists to bill for comprehensive consultations requiring at least 75 minutes of direct patient contact. Optimize billing for complex cases today.

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

1What Is the A150 OHIP Code?

What is the A150 OHIP Billing Code?

The A150 billing code is designated for comprehensive endocrinology consultations within the Ontario Health Insurance Plan (OHIP). It applies when a specialist in endocrinology conducts a detailed consultation lasting at least 75 minutes in direct patient contact, exclusive of any other separately billable interventions.

This code is commonly used for complex cases such as intricate diabetes management, or complex pituitary or adrenal disorders where the depth of clinical assessment and planning exceeds a standard consultation. Physicians should ensure that all the elements of a consultation are covered, including history taking, physical examination, and the creation of a management plan.

Consultations of this nature require a detailed and thorough approach that justifies the higher billing amount associated with this code.

2Related Codes

CodeNameFrequencyDescription
A155ConsultationN/AStandard consultation in Endocrinology & Metabolism, lower complexity.
A156Repeat consultationN/ARepeat consultation in Endocrinology & Metabolism.
A255Limited consultationN/ALimited consultation in Endocrinology & Metabolism.
C150Comprehensive endocrinology consultationN/AHospital in-patient equivalent of A150.

3Eligibility Requirements

Eligibility Criteria for the A150 Code

To bill under the A150 code, all conditions outlined in the OHIP Schedule of Benefits must be strictly adhered to:

  • Specialty Requirement: The consultation must be conducted by a specialist in endocrinology.
  • Duration Requirement: A minimum of 75 minutes of direct patient contact is required.
  • Record Keeping: Start and stop times of the consultation must be documented in the patient's permanent medical record. Failure to do so will result in adjustment to a lower fee.
  • Written Request: A consultation must follow a written request from a referring physician, nurse practitioner, or dental surgeon. This request must be documented and comply with stipulated requirements, particularly identifying the consultant and referring practitioner details.

Furthermore, frequency limits apply: generally, one A150 service per patient per two consecutive 12-month periods unless specific conditions are met as outlined.

4What Your Clinical Note Must Show

1Time Documentation

Start and stop times must be recorded in the patient's permanent medical record.

  • Ensure accuracy of time logs.
  • Time spent on other separately billable services should not be included.
2Written Request

A written request for consultation must be kept.

  • Include the referring practitioner's details.
  • Identify the service requirements.

5Weak vs. Strong Note Examples

The strong note provides a complete overview of the comprehensive consultation, including necessary details about the patient's condition, clinical process, and includes properly recorded time metrics, while the weak note lacks in-depth details and time documentation.

Weak Note

Patient seen for diabetes review. Adjustments made to the current treatment plan. Follow-up in 6 months.

Strong Note

Comprehensive endocrinology consultation conducted for complex diabetes management.

Included thorough history from patient and recent labs, extensive physical examination focusing on neuropathy and retinopathy signs, and detailed adjustments to medication involving insulin titration.

Recommendations communicated back to the referring GP. Follow-up planned in 3 months or sooner as per patient symptoms.

  • Start time: 10:00 AM
  • End time: 11:30 AM

6Common Reasons This Code Is Missed

1
Insufficient Time Documentation
Lack of start and stop time logs in the medical records leads to reduced payment.
2
Lack of Referral Documentation
Missing or incomplete written request from a referring practitioner.
3
Inadequate Consultation Scope
Consultation note lacks comprehensive detail expected for a complex case.
4
Wrong Diagnosis Code
Usage for a diagnosis that does not warrant an endocrinology consultation.
Document A150 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 A150 under OHIP?
The fee for A150 is CAD 342.25.
How often can A150 be billed for the same patient?
A150 can be billed once per two consecutive 12-month periods for the same diagnosis, with certain exceptions.
What type of endocrinology cases are appropriate for A150?
Complex cases such as extensive diabetes management or intricate pituitary issues qualify for A150.
Can a comprehensive endocrinology consultation be conducted virtually?
Yes, as A150A, but it must be via video, not telephone.
What should occur if the minimum time requirement is not met during the consultation?
If under 75 minutes, a different billing code such as A155 may be more appropriate.
What documentation is required to support the use of A150?
Start and stop times, a written request from a referring practitioner, and comprehensive consultation notes.
In what setting might a second consultation be covered within the same period?
If the second consultation occurs more than 12 months and less than 24 months after the first and is for a hospital inpatient or emergency department patient.
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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