OHIP Billing Guide🩺 ServicePublished 2026
A511

A511 OHIP Billing Code: Navigate Complex Physiatry Assessments

A511 is used for complex physiatry assessments involving significant injuries such as traumatic brain injury, stroke, or spinal cord injury, allowing specialists to manage intricate patient care.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference114.80 CAD~3 min read

1What Is the A511 OHIP Code?

Understanding A511 Complex Physiatry Assessment

A511 is a billing code under the Ontario Health Insurance Plan (OHIP) specifically for complex physiatry assessments. This service is designed for evaluating patients with intricate conditions such as traumatic brain injury, stroke, or spinal cord injuries. Given the substantial impact these conditions have on impairment and function, the assessment aims to establish a comprehensive rehabilitation plan during a single visit.

Typical scenarios involve patients with significant physical impairments where a detailed understanding of their condition is required for effective management and rehabilitation. Because of the complexity involved, these assessments are not intended for more straightforward, uncomplicated cases, and failing to recognize this can often lead to billing issues.

2Related Codes

CodeNameFrequencyDescription
A315ConsultationAs appropriate per patient needsUsed for initial comprehensive consultations.
A316Repeat consultationAs circumstance requiresBilled when follow-up consultations are necessary.
A425Comprehensive physical medicine and rehabilitation consultationVaries with need complexityReserved for extensive consults involving multiple system evaluations.
A515Limited consultationService-based frequencyApplicable for brief consultations that don't fit other specific categories.

3Eligibility Requirements

Eligibility Requirements for A511

To bill the A511 code, the patient's condition must involve complex cases requiring ongoing management by a physical medicine and rehabilitation specialist. The conditions that qualify include:

  • Traumatic brain injury
  • Stroke (hemorrhagic or ischemic)
  • Spinal cord injury

Payment rules specify that a complex physiatry assessment must include elements of a medical specific re-assessment. If these criteria are not met, the fee will be adjusted to a lesser assessment payment. An individual physician can bill A511 up to six times per patient within a 12-month period. Services beyond this limit will automatically be downcoded.

The time when the insured service started and ended must be recorded in the patient's permanent medical record, as per OHIP's requirements.

4What Your Clinical Note Must Show

1Documentation for A511 Billing

Ensure accurate recording of service specifics:

  • Record the start and end times of the assessment
  • Include detailed assessment findings and elements of a medical specific re-assessment
  • Document eligibility reasons based on conditions like traumatic brain injury, stroke, or spinal cord injury

5Weak vs. Strong Note Examples

The strong note clearly documents the detailed clinical work done, including times, assessments, and rehabilitation plans specific to complex conditions, whereas the weak note lacks specificity and necessary details to justify the complex assessment.

Weak Note

Patient assessed for physiatry concerns. Follow-up recommended.

Strong Note

Conducted a comprehensive physiatry assessment for a newly referred patient with a spinal cord injury. Assessed impairment levels and established a detailed rehabilitation plan encompassing physical therapy and occupational therapy components. Reviewed patient's current and past therapy responses extensively.

  • Start time: 10:00 AM, End time: 11:30 AM
  • Focus on patient's improvement trajectory and specific goals based on injury.

6Common Reasons This Code Is Missed

1
Lack of Detailed Documentation
Failing to record crucial assessment details and time spent as required by OHIP.
2
Misidentifying Conditions
Billing A511 for conditions that don't meet the complex criteria, such as uncomplicated injuries.
3
Exceeding Billing Limits
Overbilling beyond the allowed six complex assessments per patient and not following up with proper documentation.
Document A511 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 A511 be billed per patient?
A511 can be billed up to six times per patient per year by the same physician.
Can A511 be billed in the same session with E078?
No, A511 cannot be paid in conjunction with E078.
For which conditions is an A511 assessment appropriate?
A511 is appropriate for traumatic brain injury, stroke, and spinal cord injury.
What constitutes a complex case for A511 billing in physiatry?
Cases that require extensive rehabilitation plans, like severe spinal cord injuries, qualify as complex.
How is a first complexity visit identified for A511?
In scenarios such as initial assessments of severe functional impairment or significant rehabilitation plans.
What should be the basis for choosing A511 over A315?
Choose A511 when the focus is on complexities specific to rehabilitation rather than initial consultation.
When can the service be delivered virtually and billed as A511?
When a video or telephone assessment sufficiently meets the complex criteria under current practice conditions.
Is a referral from a specialist required to bill A511?
Referral from any relevant healthcare provider guiding physiatry management can justify A511 billing.
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.
@2026 Empathia AI, Inc. All rights reserved.