Workers Comp Predictive Analytics – Do Not Ignore Old Open Claims
One of the big changes with loss run reviews started with the carriers and now the whole insurance industry not ignoring the old open claims. Workers Comp predictive analytics has changed how old open claims are evaluated in underwriting.

Years ago, I wrote numerous articles that pointed to only considering claims that were going to be fed into the Experience Mod system. I even said that predictive systems would not work in workers’ comp. That statement still stands. I will cover it in the next heading.
The scenario has changed so much in the last 10 years that I had to change my advice that I give to claims adjusters, employers, agents, and others.
Does this discount the Experience Mod system? No, it does not as the Mod is still the most common way to assess the risk of an employer.
Times are changing though, on how the Workers Comp insurance industry evaluates employers to underwrite them. One cannot ignore the Schedule Modification factors that carriers assign to employers.
Read up here on Schedule Mods as more carriers are using algorithms to calculate your risk factor in addition to looking at your Experience Mod. Schedule Mods can swing your premiums up to 50% in certain states.
Two Types of Workers Comp Predictive Analytics
The two areas of analytics as I view them are pre-claim analytics and post-claim analytics. Pre-claim analytics seem to work well. Post-claim analytics have not moved forward that far yet.
Pre-claim Analytics
Analytics on the front-end of the Workers Comp insurance process has become almost the norm in most underwriting departments. Carriers, Third Party Administrators, Captives, and other entities that provide coverage can now import the claims data, analyze it, and come up with a score that may vary somewhat from the Experience Mod system.
Many companies have sold and now sell analytics packages that have simplified the front-end rating processes on insureds.

Agencies are now more prone to have a set of algorithms that analyze current and potential clients for many types of loss ratios.
Inside of pre-claim analytics, the old claims count significantly more than with the Experience Mod rating systems used by the rating bureaus (NCCI, WCIRB, etc.).
Numerous old open claims on a loss run (more than five years old) may have little effect on your E-Mod/X-Mod. They will have a greater effect on pre-claim analytics. Closing out the old claims has become more important over time.
Check out this article on reopened claims causing problems if they are included in any analytic evaluations. Reopened claims sometimes have the same numbers reset on the claim, as when the claim was originally closed. These reopened claims can spike an E-Mod or any type of workers comp predictive analytics.
Post-Claim Analytics
Post-claim analytics, according to my opinion, attempt to predict claim values using various factors surrounding the claims. I still have not seen a package that can analyze the healing of the human body with a predicted return to work date or the amount of medical treatment required for a return to gainful employment.
Over my career, I have reviewed thousands of claims and loss runs. I have often seen this situation – a group of injured employees have the same:
- Employer
- Socioeconomic factors
- Age, Sex, pre-injury health
- Treating physician
- Injury type
- Other similar factors.
The healing and return to work period vary widely for a similar group as the human body does not heal the same. No algorithm that I have seen predicts the outcome of these claims.
I still want to be proven wrong. I have reviewed some of the systems that were good at pre-claim analytics including the level of safety provided to the employees as a predictive factor. I have not seen one to date taking post-claim data and using it for a model.
Old Claims Now More Critical – Workers Comp Predictive Analytics

Workers Comp predictive analytics looks at more of a longer horizon than the usual. Even most actuarial analyses are giving more weight to older claims.
In 2010 – 2011 and before, I would usually ignore claims that were more than five years old. Why should I ask an employer or insurance agency to pay me to close files that made no difference to the Experience Mod or a self-insured Loss Development Factor?
Any claims that appear on loss runs, including old open claims, now require treatment as if they were open new claims. Workers Comp predictive analytics now give them much more weight when analyzing an insured.
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