What the guidelines are
The Medical Treatment Guidelines, usually shortened to MTG, are New York’s standardized treatment framework for work-related injuries. They describe the care that is considered appropriate for specific body systems and conditions, the order treatment should follow, and how long a given course of care is expected to run before something else is tried.
The guidelines exist so that care for a covered injury starts from an evidence-based default rather than a case-by-case argument. For a patient, the most useful way to think about the MTG is as a map: it shows the route your treatment is expected to take, where the pre-approved stops are, and the points where a detour requires permission.
Which conditions they cover
The MTG cover a defined set of body systems and conditions, expanded over the years to include areas such as the back, neck, shoulder, knee, elbow, wrist and hand, plus carpal tunnel syndrome, certain pain conditions, and others. Each covered area has its own guideline document with its own recommended treatments.
When your injury falls inside a covered area, treatment that matches the guideline for your condition and recovery stage is generally pre-authorized. That is the single most important practical effect of the MTG: care that fits the guideline does not need a separate sign-off before your provider can deliver it, which removes a layer of delay from routine treatment.
Treatment limits and maintenance care
The guidelines also set boundaries. Many recommended treatments come with frequency and duration limits, the idea being that a course of therapy is meant to produce measurable improvement within a defined period. When the limit is reached, continuing the same treatment usually requires a fresh look at whether it is still helping.
For injuries that have stabilized, the MTG also address ongoing maintenance care, which is treatment intended to preserve function rather than produce further improvement. Maintenance care has its own conditions and documentation expectations, and it is a distinct category from the active-treatment phase. A provider has to show the case file why continued care fits the maintenance standard for your condition.
When care falls outside the guidelines
Sometimes the treatment a provider believes is appropriate is not what the guideline recommends for your condition, or it exceeds the stated limit. That is where a variance request comes in. A variance is the formal route, filed through OnBoard, for asking the carrier to approve treatment that departs from the MTG.
A variance request puts the burden on the treating provider to explain, with clinical support, why the standard guideline care is not appropriate or sufficient for this patient and why the proposed alternative is. The carrier then responds inside its deadline. The variance process is how the system stays flexible without abandoning the guideline default, and it is the mechanism that handles the cases the standard map does not cover.
Why the guidelines matter to your care
For an injured worker, the MTG explain a lot of what otherwise looks arbitrary: why some treatment proceeds immediately while other treatment waits for a response, why a course of therapy ends at a certain point, and why a provider sometimes has to file paperwork before doing something that seems obvious. The guidelines are the reason behind those patterns.
Knowing whether your condition is inside a covered guideline area, and roughly where you sit in the expected treatment sequence, lets you have more useful conversations with your treating provider. It also tells you when a variance is the relevant tool rather than a routine request, which is the difference between care that moves smoothly and care that stalls on the wrong form.
Body areas the guidelines cover
The MTG have expanded over the years to cover many common work injuries, including:
- Back (mid and low) and neck
- Shoulder, elbow, and wrist/hand (including carpal tunnel syndrome)
- Knee
- Certain chronic pain conditions, and other defined areas
If your injury sits inside a covered area, treatment matching the guideline for your condition and stage is generally pre-authorized.
Key terms
- MTG — Medical Treatment Guidelines, New York’s standardized treatment framework.
- OnBoard — the Board’s online portal where treatment requests are filed.
- Variance — a request to approve treatment that departs from the guidelines.
- Maintenance care — ongoing care to preserve function after a condition stabilizes.
- MMI — maximum medical improvement.
This is general educational information about New York’s Medical Treatment Guidelines, not medical or legal advice. Your treating provider decides what care to recommend; for questions about your own treatment, speak with them, and for disputes, the Workers’ Compensation Board or a qualified attorney.