OHIP Billing Guide🩺 ServicePublished 2026
A270

A270 OHIP Billing Code: Optimizing Care for Complex Infectious Diseases

A270 allows infectious disease specialists to provide detailed assessments for managing complex infections, enhancing patient care management.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference95.05 CAD~3 min read

1What Is the A270 OHIP Code?

Complex Infectious Disease Assessment

The A270 code is utilized by infectious disease specialists to conduct thorough assessments for patients with intricate infectious conditions. This involves a detailed evaluation of the patient's medical history, symptoms, and existing treatment protocols, typically continued management of prolonged therapy for conditions such as endocarditis, osteomyelitis, or resistant organisms.

Accurate and comprehensive documentation is crucial, encompassing all elements of a specified assessment. Due to the complexity involved, it's imperative that healthcare providers meticulously record the assessment details, including start and stop times, to ensure compliance with OHIP requirements.

Commonly missed due to oversight in documenting time or misunderstanding the patient visit frequency cap, this code emphasizes the diagnostic complexity inherent in infectious disease management.

2Related Codes

CodeNameFrequencyDescription
A275Limited consultationAs per infectious disease rulesInitial or subsequent assessments with limited scope for infectious diseases.
A460Comprehensive infectious disease consultationAs per infectious disease rulesA detailed consultation for more intensive infectious disease cases.
A465ConsultationAs per infectious disease rulesStandard infectious disease consultation.
A466Repeat consultationAs per infectious disease rulesConsultations offering follow-up on initial assessments.

3Eligibility Requirements

Eligibility Requirements for A270

  1. Assessment Components: The assessment must meet all the elements of a specific assessment; otherwise, the reimbursement will be adjusted to a lesser fee assessment.
  2. Frequency Limits: The complex infectious disease assessment is limited to six assessments per patient, per physician, within a 12-month period. Exceeding this limit will also result in fee adjustments to a lesser assessment code.
  3. Documentation: It is mandatory to record the start and stop times of the assessment in the patient's permanent medical record; without this, the payable amount will be adjusted.
  4. Virtual Care Eligibility: A270 can be billed for virtual care with the designation A270A, applicable for both video and telephone consultations.
  5. Hospital In-Patient Services: For hospital in-patient assessments, the equivalent billing code is C270.

4What Your Clinical Note Must Show

1Time Documentation

Record start and stop times of the assessment in the patient's medical record.

  • Start and stop times must be clearly documented in the medical record.
  • Failure to document times results in fee reduction.

5Weak vs. Strong Note Examples

The strong note provides detailed insights into patient management and documents start and stop times, ensuring compliance with billing requirements.

Weak Note

Reviewed patient's condition regarding osteomyelitis. Discussed treatment options.

Strong Note

Conducted a comprehensive assessment of the patient's management of osteomyelitis. Reviewed current symptoms, medication adherence, and lab results.

  • Start time: 14:00
  • End time: 14:45
  • Discussed long-term antibiotics and resistance.

6Common Reasons This Code Is Missed

1
Incomplete Documentation
Failure to record assessment start and stop times in the patient's medical record.
2
Exceeding Frequency Cap
Billing more than six assessments per patient per year without verification leads to reimbursement adjustment.
3
Lack of Comprehensive Assessment
Missing elements of a specific complex assessment can result in billing claims being downgraded to lesser fees.
Document A270 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 A270 be billed for a single patient?
A270 can be billed up to six times per patient per physician in a 12-month period.
Can A270 be used for virtual consultations?
Yes, A270 can be billed as A270A for virtual consultations, including both video and telephone formats.
What type of conditions typically warrant an A270 assessment?
Conditions such as prolonged management for endocarditis, osteomyelitis, or infections caused by resistant organisms typically require an A270 assessment.
What should be included in the medical record for an A270 assessment?
The medical record must include comprehensive assessment details and clearly documented start and stop times.
Under what circumstances is A270 necessary for patient management?
A270 is necessary for ongoing management where patients are receiving prolonged therapy for severe infectious diseases.
I am referred a patient from a general practitioner. Which situations justify using A270 over other codes?
Use A270 if the patient presents with complex infections that require a detailed assessment and management plan, as described in the clinical context.
What information is crucial when documenting start and stop times for billing A270?
Accurate time documentation is required, noting the exact minutes at which the assessment starts and finishes.
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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