What Permanent Partial Disability (PPD) Means

Permanent partial disability applies when a work injury leaves you with a lasting impairment, but you are still considered able to return to some form of work. PPD does not require you to return to the exact job you had before. It simply reflects that a portion of your overall earning capacity or bodily function has been permanently affected.

Missouri calculates PPD benefits using a percentage of disability applied to a specific body part or, for more serious injuries, to the “body as a whole.” A knee, shoulder, or hand injury is typically rated as a scheduled member injury, with a set number of weeks of compensation tied to the impairment percentage. A back injury, a traumatic brain injury, or a condition affecting multiple systems is usually rated as a body-as-a-whole injury, which follows a different calculation and can result in a longer benefit period.

The percentage of disability is not something you decide, and it is not automatically generous. It comes from a medical rating, often performed by a doctor selected or approved by the insurance company. This is one of the more contested parts of many Missouri workers’ comp claims, because the rating directly drives the dollar value of the settlement or award. An insurer-selected doctor’s assessment can come in lower than what an independent evaluation would show, particularly for injuries involving ongoing pain, reduced range of motion, or the need for future care.

What Permanent Total Disability (PTD) Means

Permanent total disability is a much higher bar. It applies when an injury leaves a worker unable to compete for and hold any job in the open labor market, not just their prior occupation. The standard is not whether you can perform your old job again. It is whether any employer, in the ordinary course of business, would reasonably be expected to hire you given your current physical or cognitive limitations.

Workers found permanently and totally disabled may receive benefits for the rest of their life rather than for a fixed number of weeks. Because of this, PTD claims are frequently disputed by insurance carriers. A worker with a severe back injury, an amputation, a significant brain injury, or a combination of injuries across multiple body parts may qualify, but proving it usually requires more than treatment records. Vocational experts, functional capacity evaluations, and testimony about what the labor market actually looks like for someone with your restrictions often become part of building the case.

Missouri also has a Second Injury Fund that can come into play when a prior disability combines with a new work injury to produce total disability. This is a separate and often overlooked piece of PTD claims, particularly for workers who had an earlier injury, whether work-related or not, that compounds the effects of the current one.