What Is Schedule Loss of Use? A Guide for Injured Workers

📋 Guide • 12 min read

If you've suffered an injury to your arm, leg, hand, foot, or other scheduled body part in a New York workplace accident, you may be entitled to a Schedule Loss of Use (SLU) award. This is a lump-sum payment that compensates you for the permanent loss of function in that limb or extremity — separate from your weekly benefits and medical treatment.

Understanding SLU is critical because it often represents your largest single award in a workers' compensation case. Yet many injured workers don't fully grasp how SLU is calculated, how it's determined, or what disputes commonly arise. This guide explains everything you need to know.

What Exactly Is Schedule Loss of Use (SLU)?

Schedule Loss of Use is a lump-sum permanency award under New York Workers' Compensation Law Section 15(3) that compensates injured workers for permanent loss of use or function in a scheduled body part — an extremity or sensory organ.

Here's what makes SLU different from other compensation:

Which Body Parts Are "Scheduled"?

Not all work injuries qualify for SLU. Only injuries to "scheduled" body parts receive this award. Under New York law, the scheduled body parts are:

Important: Injuries to the back, neck, head, brain, heart, and lungs are not scheduled. These injuries fall into the "non-schedule" category and are handled differently — they're classified into loss of wage earning capacity (LWEC) categories with ongoing weekly payments rather than lump sums. Some injuries can have both a schedule and non-schedule component.

How SLU Awards Are Calculated: The Formula

The SLU award is calculated using a straightforward formula:

SLU Award = (Percentage of Loss) × (Schedule of Weeks for that Body Part) × (Weekly Benefit Rate at 2/3 of AWW)

Let's break down each component:

1. Percentage of Loss

This is determined by a doctor using the 2018 New York Guidelines for Determining Permanent Impairment and Loss of Wage Earning Capacity. The percentage reflects the degree of functional loss in the injured body part — measured on a 0-100% scale, where 100% would be complete loss of the limb.

For example, a worker might have 30% loss of the left arm due to reduced range of motion and weakness, or 50% loss of a hand due to loss of grip strength and dexterity.

2. Schedule of Weeks

Each scheduled body part has an assigned number of weeks under New York law. These weeks represent the maximum benefit value for that body part:

3. Weekly Benefit Rate

This is calculated as two-thirds (2/3) of your average weekly wage (AWW) at the time of injury, subject to the maximum and minimum benefit rates set by the Workers' Compensation Board.

Putting It Together: A Worked Example

Example: A construction worker injures his left arm and is found to have a 30% loss of function. His average weekly wage is $600, so his weekly benefit rate is 2/3 of $600 = $400.

SLU Calculation:
30% × 312 weeks × $400 = 0.30 × 312 × $400 = $37,440

This worker receives a lump-sum award of $37,440 for his arm injury, in addition to any temporary or permanent disability benefits.

The 2018 Impairment Guidelines: A Major Rule Change

On January 1, 2018, New York implemented a major change to how permanency is determined: the NYS Guidelines for Determining Permanent Impairment and Loss of Wage Earning Capacity replaced the old American Medical Association (AMA) Guides.

This change fundamentally altered how doctors measure permanent loss:

The practical effect: The guidelines are more standardized and evidence-based, but they've also shifted how doctors assess permanency. Both sides now submit medical evidence using the same guidelines, which reduces (but does not eliminate) disputes over the percentage of loss.

Critical Timing Issue: If your date of accident (DOA) is before January 1, 2018, your case is still governed by the old AMA Guides, not the new 2018 Guidelines. This can significantly affect how your permanency is determined and valued. If your case predates 2018, make sure your attorney is using the correct guidelines.

How SLU Percentages Are Determined: The Medical Process

The percentage of loss is not determined by you or your employer — it's a medical question decided by the Workers' Compensation Law Judge (WCLJ) based on medical evidence from both sides.

Your Treating Doctor's Role

Your treating physician (the doctor who's treated your injury from the start) evaluates you once you've reached Maximum Medical Improvement — the point where your condition is no longer expected to improve. Your doctor then provides an opinion on your permanency using the 2018 Guidelines or, if applicable, the AMA Guides.

Your doctor's findings might include:

The Carrier's IME Doctor

The workers' compensation insurance carrier will order its own Independent Medical Examination (IME). The IME doctor performs a similar evaluation but from the carrier's perspective — often with the goal of supporting a lower percentage of loss.

The Dispute and Resolution

If your treating doctor says you have 40% loss and the IME doctor says 20% loss, there's a disagreement. The WCLJ must decide whose opinion is more credible based on:

Generally, a treating physician with multiple visits and detailed medical records carries more weight than a one-time IME. However, if the treating doctor's findings are inconsistent or poorly documented, an IME doctor's opinion may prevail.

When Do You Get an SLU Award?

You don't receive an SLU award immediately after your injury. Several conditions must be met:

1. Reach Maximum Medical Improvement (MMI)

Your doctor must determine that you've reached MMI — the point where further treatment is unlikely to improve your condition. This typically occurs months after the initial injury, once you've completed all reasonable treatment (physical therapy, surgery, medication trials, etc.).

2. Have a Permanency Finding

Your treating physician must issue a permanency determination — a formal statement that you have permanent loss of function in the injured body part. Without a permanency finding, there's no SLU claim.

3. The Carrier's IME

The carrier will likely order an IME once your case reaches MMI. The IME doctor will evaluate you and submit a report. If there's disagreement about the percentage of loss, the case may proceed to a hearing.

4. Hearing (If Necessary)

If you and the carrier disagree on the percentage of loss, a hearing before a WCLJ resolves the dispute. The judge hears testimony from both doctors and decides the percentage.

5. Award is Issued

Once the percentage is determined (either by agreement or by the judge's decision), the SLU lump sum is calculated and paid.

SLU vs. Non-Schedule Awards: A Critical Distinction

The difference between schedule and non-schedule injuries is crucial because it affects the type and amount of compensation:

Non-schedule injuries are often more valuable over the long term because they can provide lifetime benefits, whereas an SLU award is a one-time lump sum. However, some injuries have both a schedule component (e.g., loss of the hand) and a non-schedule component (e.g., inability to work due to chronic pain). In these cases, you may receive both SLU and LWEC benefits.

Can You Settle an SLU Case? Section 32 Settlements

Rather than proceed to a hearing and let the judge determine your permanency, you and the carrier can settle your case under a Section 32 settlement agreement. A Section 32 settlement is a binding agreement where you accept a negotiated lump sum in exchange for closure — you waive the right to future benefits (except for specific medical treatment for the injury).

Why settle rather than go to hearing?

However, once you settle, you cannot change your mind or request additional benefits. Settlement decisions should be made carefully, ideally with the guidance of a workers' compensation attorney.

Settlement Valuation: Use The Comp Desk's free Section 32 Settlement Calculator to estimate a fair settlement value based on your permanency percentage, body part, and average weekly wage. This helps you understand whether a settlement offer is reasonable.

Common SLU Disputes and Issues

SLU cases frequently involve disputes that can delay or reduce your award. Here are the most common:

Disagreement Over the Percentage of Loss

This is the most frequent dispute. Your doctor says 40% loss; the IME says 20%. The WCLJ must decide. The outcome often hinges on the credibility and detail of each doctor's findings.

Failure to Reach MMI

Some workers file for SLU before they've truly reached MMI — while still improving with treatment. The carrier will argue that benefits should continue, not convert to an SLU lump sum. Your doctor's certification of MMI is critical.

Lack of Adequate Medical Documentation

If your medical records are sparse or your doctor hasn't done detailed measurements (range of motion, strength tests, etc.), the WCLJ may find the permanency determination unconvincing. Well-documented medical records are essential.

Causation Disputes

The carrier may argue that your loss of function is not causally related to the work injury — that it's due to pre-existing conditions, aging, or other factors. Your doctor must clearly explain why the injury caused the permanent loss.

IME Doctor Credibility Challenges

If the carrier's IME doctor has a history of consistently undervaluing injuries, or if their findings are inconsistent with your medical records, your attorney can challenge their credibility at hearing.

Using The Comp Desk's SLU Calculator

Estimating your SLU award should be straightforward once you have three key pieces of information:

The Comp Desk's SLU Calculator automates this formula. Enter your body part, loss percentage, and benefit rate, and the calculator instantly shows your estimated SLU award. This is a free tool designed to help injured workers understand their potential compensation.

The calculator includes:

What Happens if You Disagree With Your Doctor's Permanency Finding?

Sometimes your treating doctor may issue a permanency finding that you believe is too low, or may declare MMI prematurely. You have options:

The key is to be proactive and document your concerns in your medical records.

The Role of Your Workers' Compensation Attorney

SLU cases involve medical evidence, legal procedures, and significant dollar amounts. A workers' compensation attorney can help you by:

Key Takeaways: What You Need to Know About SLU

Estimate Your SLU Award

Use The Comp Desk's free SLU Calculator to instantly estimate your schedule loss of use award based on your body part, permanency percentage, and benefit rate.

Try the SLU Calculator →
Disclaimer: This article is for informational purposes only and does not constitute legal advice. It is not a substitute for consulting with a licensed workers' compensation attorney about your specific situation. SLU awards and permanency determinations vary based on individual circumstances, applicable guidelines, and case-specific evidence. The 2018 Guidelines apply only to cases with dates of accident on or after January 1, 2018. For legal advice specific to your case, consult a qualified workers' compensation attorney in New York.