The “Success Formula”
Many Ontario physicians still believe they can only bill one major code per patient visit. That assumption leaves money on the table and undervalues the complexity of modern primary care.
The reality is that you can bill both an Intermediate Assessment (A007) and Primary Mental Health Care (K005) in the same encounter when they address clearly separate clinical issues. When done correctly, this combined approach reflects the true scope of care you provide.
In 2025, the approximate total value of this pairing is $108.05+, made up of A007 at about $37.95 and K005 at about $70.10. With temporary relativity adjustments of roughly 13%, exact fees may vary slightly.
This guide walks you through the rules, documentation tips, and real-world examples so you can bill confidently and avoid common rejections. Used properly, this strategy can significantly improve both accuracy and revenue in everyday practice.
The Golden Rules
1. Clearly Different Diagnoses
The first and most important rule is that each code must relate to a different clinical problem. You cannot use the same ICD-9 diagnosis code for both A007 and K005.
For example, billing A007 for hypertension (401) and K005 for anxiety (300) is acceptable. Billing both for the same mental health diagnosis is not and will likely trigger an OHIP rejection.
This separation shows that you addressed two distinct issues rather than splitting one problem into two billings. Your assessment and plan should reflect that difference clearly.
2. Meet the Time Requirement for K005
K005 is a time-based code that requires a minimum of 20 minutes devoted specifically to mental health care. This time must be separate from the physical or general assessment work billed under A007.
In combined visits, many clinics aim for 25–30 minutes total to comfortably document both components. While not an official rule, this industry standard helps support the legitimacy of the claims.
Always be explicit about how long you spent on counseling, psychotherapy, or mental health management. Vague notes about “discussed mood” are not enough to support K005.
3. Separate and Clear Documentation
Your charting must clearly show two different services were provided in the same visit. Each problem should have its own assessment, plan, and clinical focus.
A poor note might read: “Patient here for checkup and feeling down.” This blends both issues together and invites scrutiny.
A stronger note would state: “Physical exam and management of chronic hypertension (A007). Separately, 22-minute session addressing depressive symptoms and adjusting medication (K005).” This clarity protects your claim.
When these three rules are met, you greatly reduce the risk of seeing the dreaded rejection message: “IA – Indirectly billed with another code.”
Why This Matters: A Comparison
Many physicians default to billing a General Assessment (A003) for complex visits that involve both physical and mental health concerns. While A003 is valuable, it may not always reflect the structure of the visit.
Here is how the numbers compare in 2025:
Billing Scenario:
General Assessment (A003)
Approximate Fee: ~$87.35
Billing Scenario:
Combined A007 + K005
Approximate Fee: ~$108.05
Difference:
+$20.70 per patient
That difference adds up quickly over weeks and months of practice. More importantly, it aligns your billing with the true clinical work you perform.
By understanding these rules, you are not “gaming the system.” You are simply using OHIP as intended to recognize both physical and mental health care delivered in one visit.
Common Clinical Pairings Doctors Use
In busy family practice and walk-in settings, certain combinations appear again and again. Tech-driven tools can help clinicians quickly check whether their pairings meet OHIP rules.
Here are some of the most common A007 + K005 scenarios physicians search for:
A007 (Diabetes – 250) + K005 (Adjustment Disorder – 309)
Patients with chronic diabetes often struggle with coping and lifestyle changes. Addressing both in one visit is common and appropriate.
A007 (Asthma – 493) + K005 (Anxiety – 300)
Shortness of breath can worsen anxiety, and anxiety can worsen asthma. Treating both distinctly reflects real clinical practice.
A007 (Back Pain – 724) + K005 (Depressive Disorder – 311)
Chronic pain and depression frequently coexist, requiring both physical management and focused mental health care.
These pairings work because each code targets a separate diagnosis and clinical pathway. The key is ensuring your documentation shows that separation clearly.
Interactive tools and code checkers can make this process faster and reduce uncertainty during charting. For tech-focused clinics, this can become a powerful workflow advantage.
Practical Tips for Daily Practice
Start your visit with a clear agenda when multiple issues are present. Let the patient know you will address their physical concern and then spend focused time on mental health.
Track time actively during counseling segments so you can confidently document at least 20 minutes for K005. Even a simple note like “22 minutes spent in psychotherapy” strengthens your claim.
Structure your notes with headings or separate paragraphs for each problem. This makes audits easier and improves continuity of care for follow-up visits.
Finally, review your rejections regularly. If you see repeated IA errors, it is often a sign that diagnoses or documentation need tightening.
FAQ: Billing A007 and K005 Together
Can I bill these together for virtual visits?
Yes, virtual care is allowed when you use the appropriate virtual equivalents or modifiers. In many 2025 settings, this means using K081 for a virtual intermediate assessment and K082 for virtual mental health care, or applying the correct K-prefix depending on your platform rules.
Always confirm the latest virtual billing guidance from OHIP or your EMR updates, as platforms may implement modifiers differently.
Is there a yearly limit on how many K005 codes I can bill?
Unlike K013, which is capped at three units per patient per year, K005 does not have a strict annual limit. This makes it especially valuable for ongoing mental health management in primary care.
You should still ensure that each claim is clinically justified and properly documented. High-frequency updates without a clear need may attract review.
What is the most common reason these claims are rejected?
The most frequent cause is using the same or overlapping diagnoses for both codes. Another common issue is failing to document the minimum 20 minutes for K005.
Clear separation in both diagnosis and notes solves most problems before they happen.
Can specialists also use this combination?
While this guide focuses on primary care, some specialists may use A007 and K005, depending on their billing eligibility. Always check your specialty’s permitted codes and payment rules.
When in doubt, consult the Schedule of Benefits or your billing advisor.
Final Thoughts
Billing A007 and K005 together is not about maximizing revenue at all costs. It is about accurately reflecting the dual reality of modern primary care, where physical and mental health are deeply connected.
By following the golden rules, documenting clearly, and using smart tools to guide your choices, you can bill with confidence and integrity. Over time, this approach supports both better care and more sustainable practice management.
If you regularly manage chronic disease alongside mental health concerns, mastering this combination is one of the most practical OHIP strategies you can adopt in 2025.