Author: Alpha Health
To date, much attention has focused on the application of artificial intelligence (AI) and machine learning (ML) in healthcare in some of the most obvious areas to apply it: drug discovery, diagnostics, or patient care and protocol solutions. However, there are areas of healthcare that are less obvious to the general public because these functions are rarely seen by patients, physicians and other care providers. These opportunities require us to dig deeper into our healthcare system but often offer the greatest potential to drive systemic improvement for how healthcare works in the world’s most expensive healthcare system, the United States.
Revenue cycle operations are an area ripe with opportunity, but one that has historically been underserved by these technologies. AI/ML innovation has either been designed for other industries and adapted to healthcare with limited success or designed to address a limited scope of revenue cycle operations.
Against that backdrop, two leaders at Alpha Health, a revenue cycle expert and a machine learning expert, hosted a conversation this week to help their virtual audience understand how they’ve applied AI/ML specifically to Revenue Cycle Management (RCM). “We’ll take a look under the hood so you can see how we’ve done it,” said Verun Ganapathi, co-found and chief technology officer of Alpha Health.
Evolution of Revenue Cycle Management
Before diving into the technology, Amy Raymond, Head of Revenue Cycle Operations at Alpha Health, sought to contextualize the evolution of revenue cycle technology. Raymond has spent her entire career in medical billing, starting at a family friend’s medical billing company in 1995. Her work involved “sorting correspondence and returned claims, reading the letters the insurance companies had attached, and entering them onto a spreadsheet to be worked,” she explained. Greenbar paper was popular “because they had plenty of room for people to write their notes on it.”
These experiences typified what Raymond characterized as the “Manual” stage of staffing for revenue cycle technology. Next, a degree of integration and “automation” took place in the “Staff Augmentation” phase as Excel Spreadsheets and later, electronic health records (EHRs) entered the picture.
Understanding “automation” presented a challenge as Raymond transitioned from an analogue to a digital world. Knowing limitations of an IT department, discovering what bots could and could not do, and finding out how EHRs weren’t built for automation. “We not only saw the revenue cycle evolve and change, but we have seen the types of automation available to us evolve as well,” Raymond said.
Understanding each type of automation is important because they each have their use and you want to make sure that you are selecting the right product for the job,” she said.
In the robotic process automation (RPA) stage of automation,where many companies currently are, Excel based macros or RPA – based on specific rules can handle discrete tasks.
The current stage, as Raymond and her colleagues see it, is “machine learning where we can begin to see much more sophisticated handling or work that entails full processes, which takes us through to the concept of Unified Automation.”
Demystifying machine learning
Ganapathi opened the next phase of the presentation by explaining the differences between RPA, artificial intelligence, and machine learning before delving into Unified Automation. As the oldest of the technologies, RPA is the simplest, “a tool that enables other things to happen, such as macros that control graphical applications or web browsers.” Using a self-driving car as an example, Ganapthi added, “RPA is sort of the system that enables the steering wheel to turn 2 degrees, or press the accelerator or brake.” It is limited to those specific functions and cannot easily adapt to changes or exceptions; it must be reprogrammed.
AI, however, “is the brains that allow us to do smarter things with those controls,” Ganapathi said. “Tasks that normally require human intelligence such as visual perception, speech recognition, decision making, and translation between languages.”
ML is a subfield of AI; while ML shares many similarities with AI, it differs because its systems can improve itself when exposed to more data. “Instead of programming the computer, you teach it by showing it examples of what you want to do,” Ganapathi said.
Additionally, all ML uses optimization. The goal is to move a value of a function to the minimum or the maximum. “We’ve translated the problem of how to act into a minimization problem,” Ganapathi noted, “so it gives us the actions that yield the greatest reward.”
Having a human in the loop is a critical safeguard in the process. In self-driving cars, the program has to continuously see the world and make decisions. “The cost of an error is very high,” Ganapathi said. “When the car sees something it isn’t sure of what to do, a human remotely situated takes over.” The same strategy for encountering a proverbial “mattress in the road” can be applied to ML in other applications like for RCM.
Promising Areas of Opportunity for Advanced Technologies in RCM?
The presenters spotlighted four priorities for revenue cycle automation that could lead to significant change for the industry.
- “Eligibility driven off insurance cards would be amazing,” Raymond said. ML could be used to automate card data input to eligibility checks in the near future.
- “Prior authorization is another top reason for denial of coverage,” she noted, and ML could be used to learn requirements, implement checks, and obtain authorizations.
- “Follow up to no response claims often feels like you’re throwing armies at one problem,” Ramond said. ML could be used to complete claim status checks on payer portals for all claims with no response and write a response back into the EHRs, then prioritize the next action based on the payers response.
- “Denials management– writing off uncollected dollars is a tough but important last step,” Raymond said. “When we improve the previous three areas we’ll have reduced the number of denials we deal with in the first place.” ML could appeal or rebill technical denials by understanding payer requirements, pulling necessary information from EHRs or writing them off if indicated.
WHAT IS RPA suited for versus ML?
“RPA would be ideal if the world was simple, the buttons on web pages never move, and there were no pop-ups,” Ganapathi said. Since that’s not the case, RPA requires extensive technical support for re-writes and updates to automation for changes in rules and processes. This, of course, is difficult to scale.
But in ML solutions, automation handles full tasks and processes with decision-making. Technical support is needed during implementation but not for re-writing of rules. And when it encounters a problem or exception “the human in the loop” handles these edge cases.
Alpha Health calls their solution “Unified Automation” because it seamlessly integrates AI and ML with human judgement and subject matter expertise in RCM. In it, AI observes RCM processes as they are undertaken, learns and identifies which processes can be automated, then performs them. When exceptions pop up that the AI can’t address, it doesn’t risk making a mistake, they’re flagged to a revenue cycle analyst to resolve. The AI observes the solution as it is performed, learning along the way.
“We’ve created a very tight loop around the process,” Ganapathi noted, “optimized for your problems.” This process ensures high quality results, even in an environment where updates and changes are commonplace.
Key questions to ask AI/ML vendors
In the home stretch of their presentation, the speakers sought to help their audience know where to start and what to look for when considering AI/ML vendors.
“If they’re selling an AI or ML tool, it’s reasonable to ask how many experts they have on staff,” Raymond said. At Alpha Health, we have a number of PhDs specializing in AI and a team of revenue cycle experts on staff.
“It’s really about seeing if the person knows what they’re talking about,” Ganapathi explained. “Are they knowledgeable enough to write their own algorithms or do research that moves the field forward?” In that vein, it’s fair to ask if the vendor or their experts have published peer-reviewed articles on the algorithms they’ve created in order to gauge their expertise.
Additionally, RCM problems are unique to the field and solutions require extensive knowledge in two challenging fields. In response, “our AI experts have to learn RCM,” Raymond explained. “You have to understand RCM to effectively apply ML to it.”
There aren’t solutions ‘on the shelf,’ Ganapathi added, “so you should ask your vendor if they have proprietary technology.” And if they do, does the provider have to outsource and bolt on 3rd party tools in order to meet your needs?
During the Q&A portion, one participant asked an important question about how Alpha Health ensures that the AI doesn’t learn errors. Ganapathi broke his answer down into two types of errors: systemic and random. In the case of the systemic error, “the human expert in the loop will say no, you should not have this bias in your learning problem.”
Random errors are caught by being outliers. “If a label looks weird, the AI won’t be confident about it,” Ganapathi explained. “Or it will be confident in the answer and notice that the label is wrong as it considers the other labels it has seen. At which point the system will flag the outlier to a revenue cycle expert to triage. Allowing the system to continuously learn the correct way to handle that specific outlier in the future.”
Our team developed new approaches and built technology from the ground up that is purpose-built to automate revenue cycle operations for healthcare. We call our solution Unified Automation and we built it on Amazon Web Services (AWS) for a number of reasons. AWS’ HiTrust and HIPAA compliant cloud provides healthcare organizations with immediate peace of mind. Building our solution on AWS bakes this high degree of security and compliance into our solution as well. But security is just the most obvious example. Below are a few more specific ways Alpha Health’s Unified Automation extends the benefits of a cloud approach to revenue cycle operations in healthcare:
Interested in learning more?
Contact the team at Alpha Health with questions about what to look for in an AI/ML vendor or their proprietary RCM solution.