TTD pays while you can't work; PPD compensates lasting impairment after MMI. See how Ohio calculates each, when they overlap, and what most workers miss. Blog / TTD vs PPD in Ohio Workers’ Comp: What’s the Difference? Workers' Comp Basics TTD vs PPD in Ohio Workers’ Comp: What’s the Difference? Written by Dylan Knisley Dylan has been a practicing attorney since 2015, when he passed the Ohio Bar and joined the family firm. Read Dylan’s Bio Published on Apr 29, 2026 Table of Contents Key Takeaways TTD vs PPD: The Quick Answer What Is TTD (Temporary Total Disability) in Ohio? What Is PPD (Permanent Partial Disability) in Ohio? MMI: The Hinge Between TTD and PPD Can You Receive Both TTD and PPD in Ohio? What to Know About the 90-Day Employer Exam When Calling an Attorney Sooner Changes the Outcome Common Mistakes Injured Ohio Workers Make With TTD and PPD Talk to an Ohio Workers’ Comp Attorney Before Critical Deadlines Pass FAQS Key Takeaways TTD replaces lost wages during recovery PPD compensates for permanent impairment after MMI. You can receive both, but not at the same time. If you’ve been hurt at work in Ohio, you’ve probably heard the acronyms TTD and PPD thrown around without anyone slowing down to explain them. They sound similar, they’re paid by the same system, and they often get confused, but they answer two completely different questions. TTD (Temporary Total Disability) replaces your wages while you can’t work because of a job injury. PPD (Permanent Partial Disability) compensates you for lasting impairment once you’ve recovered as much as you’re going to. The hinge between them is a determination called MMI, or Maximum Medical Improvement. This article walks through how each benefit works in Ohio, how they’re calculated, and the moments in the process where calling an Ohio workers’ compensation attorney sooner can change the outcome of your claim TTD vs PPD: The Quick Answer l TTD PPD Stands for Temporary Total Disability Permanent Partial Disability Purpose Replaces lost wages during recovery Compensates for lasting impairment When paid While you’re unable to work 6 months after date of last payment of comp How calculated 72% of FWW (first 12 weeks), then two-thirds of AWW % impairment × weeks, paid at 2/3 AWW Duration Until MMI, return to work, or other triggers 1-time award Statute ORC 4123.56 ORC 4123.57 Application C-84 (worker) + MEDCO-14 (doctor) C-92 (worker) What Is TTD (Temporary Total Disability) in Ohio? TTD replaces lost wages while a work injury keeps you off the job. It’s paid under Ohio Revised Code Section 4123.56 and is the first form of indemnity compensation most injured workers receive. To qualify, your treating physician has to certify that you’re temporarily unable to work because of an allowed condition in your claim. Two forms keep TTD flowing: the C-84, which the injured worker submits, and the MEDCO-14, which the treating doctor submits. If either form is late or missing, payments can stop. How TTD is calculated: First 12 weeks: 72% of your full weekly wage (FWW) After 12 weeks: 66⅔% of your average weekly wage (AWW) Subject to a statewide maximum that BWC updates each year There’s also a 7-day waiting period built in. TTD doesn’t pay the first 7 days, but starts paying on the 8th day. You can get paid for those first 7 days only after missing 14 days. Why TTD Almost Never Ends Because You’re “Fully Healed” In our experience, TTD rarely ends because the injured worker has fully recovered. It ends because of a procedural trigger. There are four common ones: The Injured Worker (IW) returns to work in any capacity, including light duty the employer can accommodate. The treating physician declares MMI or releases the worker to full duty. Forms aren’t timely submitted (the C-84 or MEDCO-14 isn’t filed on time). A 90-day employer IME finds MMI . This one catches the most workers off guard. Every 90 days, the employer has the right to send the injured worker for an Independent Medical Examination (IME) to determine whether TTD is still warranted. If that exam doctor opines MMI, the case goes to a hearing. If the Industrial Commission agrees, TTD stops retroactively to the date of that IME exam , and any TTD paid after that date becomes an overpayment the worker has to repay from future awards only. That retroactive piece is what most workers don’t know about until it happens. A One-Year Lookback Most Workers Miss One thing every Ohio worker should know: TTD can only be paid back one year. If you didn’t get paid for missing work and you wait too long to flag it to an attorney, you lose access to those benefits permanently. Anything older than 12 months is gone. Once one of the triggers above stops TTD, the next question becomes whether you qualify for PPD. Protect Your Workers’ Compensation Rights Today If you’ve been injured on the job, delays and denials can cost you time and money. Our experienced Ohio workers’ compensation attorneys are ready to review your case and explain your options. Call 1 (800) 573-9503 What Is PPD (Permanent Partial Disability) in Ohio? PPD compensates an injured worker for permanent impairment that remains after recovery. It’s paid under Ohio Revised Code Section 4123.57 . Unlike TTD, it isn’t a wage replacement. It’s a measure of how much lasting impairment the injury caused, calculated as an impairment percentage paid out at two-thirds of the worker’s average weekly wage, up to the max allowed based on the year of the injury. A C-92 application can be filed 6 months from the date of last indemnity compensation paid in your claim, unless additional conditions or treatments are still being processed. There’s no benefit to waiting longer than that. There are two pathways under the statute. %PP Award Under 4123.57(A) A doctor performs an Independent Medical Examination and assigns a whole-body impairment percentage. The award is paid at 2 weeks per 1% of impairment. Each percent equates to 2/3 of your AWW, up to the max allowed based on the year of the injury. See the BWC’s compensation rates for 2011 through present. A 10% impairment translates to 20 weeks of PPD; 25% translates to 50 weeks. The math is straightforward. The percentage itself is where the actual fight happens. Scheduled Loss Under 4123.57(B) For amputations or total loss of use of specific body parts, Ohio uses a scheduled award system with fixed weeks of compensation. A few examples: Hand: 175 weeks Arm: 225 weeks Leg: 200 weeks Foot: 150 weeks Eye: 125 weeks Scheduled losses are separate from %PP awards and are calculated by the body part affected, not a whole-body percentage. How the Impairment Percentage Actually Gets Set The IME doctor uses the AMA Guides to the Evaluation of Permanent Impairment , a reference book of charts and findings used to translate clinical observations into an impairment percentage. Here’s the part that matters: initial exams are typically conservative. The first IME number is usually low. When the percentage comes in too low, an attorney can appeal and send the worker to a second doctor for an independent report. The case then goes to a hearing where the Industrial Commission’s hearing officer chooses a percentage somewhere between the two reports, or between three reports if the employer commissions one as well. Roughly speaking, here’s what percentages tend to look like by injury type in our practice: Sprains and strains: typically around 4% Tears and ruptures: typically 10-15% Multiple injuries are non-exponential. If a worker with one shoulder tear receives 15%, two shoulder tears would not double to 30%. More often it lands around 20%. Every case is different. But understanding that initial numbers come in low, and that they’re appealable, is one of the most valuable things an Ohio worker can know going into a C-92 exam. A note on the AMA Guides edition: Doctors can use whichever edition they want. The latest edition is preferred, but the books cost roughly $1,000 each, so adoption tends to be slow. Most competent doctors are using a relatively current edition, but it isn’t standardized across every IME. PPD Isn’t a One-Shot Deal If a condition gets worse, or new conditions are added to the claim later, the injured worker can file an increase application to revisit the original PPD award. PPD can grow as the underlying injury changes. Wage Loss benefits under ORC 4123.56(B), which include both Working Wage Loss (WWL) and Non-Working Wage Loss (NWWL), are a separate but related path for workers who can return to some form of work but earn less than they did before the injury. MMI: The Hinge Between TTD and PPD MMI stands for Maximum Medical Improvement . It means no further treatment is expected to make you better. You’re as good as you’re going to get. This is the most consequential moment in an Ohio workers’ comp claim. When MMI is declared, TTD ends. The 6-month clock that leads to a C-92 PPD application begins running. The entire posture of the case changes. The structural problem to watch for: a BWC or employer doctor may opine MMI before all potential conditions or treatments have been approved. Looking only at what’s currently allowed in the claim, the doctor concludes MMI based on incomplete information. That opinion may change once an additional allowance (AA) is approved or a pending treatment is authorized. If you have additional conditions or treatments pending approval, the MMI determination may be premature, and it’s worth talking to an attorney before it gets finalized. Can You Receive Both TTD and PPD in Ohio? Yes, but sequentially, not simultaneously. TTD pays during recovery. Once MMI is reached and TTD ends, the C-92 PPD application can be filed 6 months from the date of last indemnity compensation paid. PPD is also different from PTD (Permanent Total Disability). PTD is its own benefit with its own statute and its own eligibility test, generally reserved for workers whose injuries prevent any return to sustained employment. Many injured workers searching online for “PPD” actually need information about PTD, and a workers’ comp attorney can help sort out which (if any) applies. What to Know About the 90-Day Employer Exam The 90-day employer IME is the touchpoint we wish more workers walked into prepared. The doctor is not your doctor. They will not offer treatment or medical advice. Their job is to determine whether you’re at MMI, meaning whether any additional conditions, treatments, or restrictions are still needed. Exams typically last 5-15 minutes . The brevity is a feature of the system, not a bug. Most of the time, the exam doctor will opine MMI. That outcome is expected. It’s the structure of how the system works. What you do before the exam matters more than what happens during it. Our advice to clients: See your treating doctor first. Make sure any additional conditions or treatments you need are formally requested and on the record. If you’re not at MMI, get your treating doctor to say so pre-emptively, in writing, with reasoning. A treating doctor’s well-supported “not MMI yet” opinion is the strongest counterweight to a 5-minute IME finding. This pre-exam visit is the single most important step most injured workers don’t take. When Calling an Attorney Sooner Changes the Outcome There’s a pattern in Ohio workers’ comp cases: the cases that go sideways are almost always the cases where someone waited. Here’s when timing matters most: Before signing anything. Settlement paperwork, return-to-work agreements, severance. Call before you sign, not after. Before a hearing on an issue. You only get two hearings on an issue, and appeal periods are short. As soon as an appeal period is running. Once it expires, the option is gone. Waiting a week typically means another week without pay or treatment approvals. That’s a setback. Waiting months or years is where claims get permanently damaged. There’s also a consequence most workers don’t anticipate: doctors don’t want patients who waited too long. The longer the gap between injury and treatment, the harder it gets to connect ongoing symptoms to the original work injury, and the harder it gets to find a doctor willing to pursue your case as a BWC claim. Common Mistakes Injured Ohio Workers Make With TTD and PPD Missing the 1-year TTD lookback. Waiting too long to flag missed benefits means losing them outright. Anything older than 12 months can’t be recovered. Walking into the 90-day exam unprepared. Skipping the pre-exam visit to the treating doctor is the single most common preventable mistake we see. The 5-15 minute IME isn’t where the case is won or lost. The visit before it is. Filing the C-92 too late, or forgetting increase applications exist. PPD isn’t one-and-done. If your condition worsens or new conditions are added, you can file for an increase. Workers who don’t know that often leave money on the table. Failing to promptly report the injury. In Ohio, you generally have one year from the date of injury to file a workers’ compensation claim under ORC 4123.84. Reporting the injury to your employer and seeking medical treatment right away protects both your claim and your eligibility for benefits. Confusing PPD with PTD. They sound similar but they’re separate benefits with separate statutes and eligibility tests. Accepting an MMI determination when additional allowances or treatments are pending. A premature MMI finding can be challenged, but only if you act before it’s finalized. Talk to an Ohio Workers’ Comp Attorney Before Critical Deadlines Pass The TTD-to-MMI-to-PPD path has a clear structure, but the deadlines along the way (the 1-year TTD lookback, the 90-day exam, the 6-month C-92 window, and every appeal period in between) reward early action and punish waiting. Knisley Law has been protecting injured Ohio workers since 1953. If you have questions about your workers’ comp claim, whether you’re navigating the line between TTD and PPD, dealing with a 90-day exam, or unsure where your claim stands, call us for a free case review. Frequently Asked Questions: TTD and PPD in Ohio What’s the main difference between TTD and PPD in Ohio? TTD replaces wages while you’re recovering and unable to work. PPD compensates you for permanent impairment that remains after MMI. TTD is temporary; PPD is for lasting injury. How is TTD calculated in Ohio? TTD pays 72% of your full weekly wage for the first 12 weeks, then 66⅔% of your average weekly wage thereafter, subject to a statewide maximum BWC updates annually. Paid under ORC 4123.56. How is PPD calculated in Ohio? A doctor uses the AMA Guides to assign a whole-body impairment percentage at an IME. The award is 2 weeks per 1% of impairment, with each percent paid at 2/3 of the average weekly wage, up to the max allowed based on the year of the injury under ORC 4123.57(A). See the BWC’s compensation rates for 2011 through present. Can I get both TTD and PPD? Yes, but sequentially. TTD pays during recovery; PPD becomes available after MMI. A C-92 PPD application can be filed 6 months from the date of last indemnity compensation paid. Why does my exam doctor keep saying I’m at MMI? The 90-day exam doctor only assesses what’s currently allowed in your claim. If you have additional conditions or treatments pending approval, an MMI finding can be premature. What happens if my injury gets worse after I get a PPD award? You can file an increase application. PPD isn’t a one-time award. It can be revisited as conditions worsen or new conditions are added to the claim. Sources · Ohio Bureau of Workers’ Compensation (BWC). bwc.ohio.gov · Ohio Revised Code Chapter 4123. Temporary Total Disability Benefits (ORC 4123.56). codes.ohio.gov · Ohio BWC TTD Benefit Rate Tables (2025). bwc.ohio.gov · Ohio Revised Code 4123.01. Workers’ Compensation Definitions. codes.ohio.gov Related Posts Workers' Comp Basics What Happens to Medical Bills When Workers’ Comp Is Denied in Ohio? If your Ohio workers’ compensation claim was denied and the medical bills... Read More Workers' Comp Basics Workers’ Compensation Retaliation in Ohio: Know Your Rights In Ohio, Workers’ Comp retaliation happens when an employer punishes an employee... Read More Workers' Comp Basics Workers' Comp Light Duty in Ohio: What It Means and Your Rights In Ohio, "light duty" is temporary modified work your employer offers while you recover... Read More Contact Knisley Law Offices for a Free Consultation You do not have to do this alone. Our team is ready to assist each person with personalized legal support tailored to your unique needs. Call For Free Consultation The information on this blog is for general informational purposes only and does not constitute legal advice. 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Injured or unable to work in Newark? Knisley Law helps with workers’ comp, injury and Social Security Disability claims in Central Ohio. Home / Locations / Newark Knisley Law Offices, Newark, Ohio Serving Injured Workers, Disabled Ohioans, and Accident Victims Across Licking County and Central Ohio. Call (740) 522-2702
 Family-Owned Since 1953 3 Generations 100+ Years Combined Experience Free Consultations No Fees Unless You Win A Family Law Firm Serving Newark Since 1953 Scott Knisley founded Knisley Law in 1953 to represent injured Ohio workers who were being pushed around by employers and insurance companies. Seventy-three years later, his sons (Doug, Dan, and Dean) and his grandsons (Dylan and Kurt) continue that work. Still family-owned. Still focused on the same people. Our Newark office on South Park Place serves clients across Licking County and central Ohio, from Muskingum County to Knox County to Perry County. We focus primarily on workers' compensation, but we also handle social security disability and personal injury cases for Newark-area families. Many of our clients are injured workers, people with long-term disabilities, or accident victims recovering from surgery. Travel isn't always possible. We come to you when you can't come to us. Clients are never case numbers here. They are neighbors, and we treat them like family. Learn more about our firm's story → Visit Our Newark Office Address 35 S. Park Pl., Suite 202
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Sat – Sun: Closed (by appointment) Getting Here Located on South Park Place in downtown Newark, a short walk from the Licking County Courthouse. Easy access from OH-16 and OH-79. Get Directions → Call Now How We Help Newark Families Our Newark office handles three practice areas: workers' compensation, social security disability, and personal injury. Workers' compensation is our primary focus. It's why Scott Knisley founded the firm in 1953, and it's where most of our work happens today. Many clients need help with more than one area at the same time, and we handle all three under one roof. Workers' Compensation in Newark Licking County workers have trusted Knisley Law with BWC claims since 1953. From initial filings through denied claim appeals, VSSR safety violations, and lump-sum settlement negotiations, we handle the full Ohio workers' comp process. Learn More Social Security Disability in Newark Disabled and unable to return to work? We prepare SSDI and SSI applications, challenge denials, and represent Licking County claimants at ALJ hearings and federal court. Most disability cases are won on appeal—not the initial filing. Learn More Personal Injury in Newark Injured in Newark, Heath, Granville, or anywhere in Licking County? Our personal injury team pursues car accident, premises liability, and wrongful death claims—with trial-tested experience when settlement negotiations fall short. Learn More The Knisley Family, Columbus Attorneys Doug Knisley 2ND GENERATION · 40+ YEARS Doug Knisley brings decades of Ohio workers’ comp experience, offering practical guidance and trusted advocacy for injured workers. Read Full Bio → Dan Knisley 2ND GENERATION · 39+ YEARS Dan Knisley, a former Marine pilot, applies discipline and focus to help Ohio clients secure workers’ comp and injury benefits. Read Full Bio → Dean Knisley 2ND GENERATION · ~40 YEARS Dean Knisley is a seasoned Ohio attorney focused on helping injured workers and accident victims pursue compensation and support. Read Full Bio → Dylan Knisley 3RD GENERATION · 11+ YEARS Dylan Knisley is a third-generation attorney handling workers’ comp and injury cases with a client-focused, results-driven approach. Read Full Bio → Kurt Knisley 3RD GENERATION · ~15 YEARS Kurt Knisley is an experienced Ohio attorney guiding injured workers through claims and appeals to help secure benefits and care. Read Full Bio → Why Newark Families Trust Our Firm Knisley Law is a central Ohio firm known for combining a 73-year family legacy, three generations of attorneys, and a focus on workers' compensation. When you call, you talk to an attorney, and we don't charge you a penny unless we recover money for you. Family-Owned Three generations. Scott Knisley started this firm in 1953. His sons and grandsons carry it today. 73 Years in Central Ohio We've represented Ohio workers since the Eisenhower administration Direct Attorney Access You meet with an attorney, not an intake coordinator or a paralegal. Free Consultations Every conversation starts free. No obligation to hire us. No Fees Unless You Win We're paid only if we recover money for you. Communities We Serve from Our Newark Office Our Newark office represents clients throughout Licking County and central Ohio. Many of our clients travel to us; when they can't, we travel to them. Injury or disability shouldn't stand between you and a lawyer who can help. Buckeye Lake Hebron Mount Vernon Reynoldsburg Granville Johnstown Newark Utica Heath Kirkersville Pataskala Zanesville Outside central Ohio? Visit our Columbus, Chillicothe, or Lima offices. Frequently Asked Questions About Our Columbus Office Where is your Newark office located? Our Newark office is at 35 S. Park Pl., Suite 202, Newark, Ohio 43055, in downtown Newark near the Licking County Courthouse. The office is easily reached from OH-16 and OH-79. What are your Newark office hours? We're open Monday through Friday, 8:00 AM to 4:30 PM Eastern Time. We also meet clients by appointment on evenings and weekends when work schedules or medical issues make regular hours difficult. Do I need to come to the office for a consultation? No. We offer free consultations by phone, video, or in person, whichever works for you. Many of our injured-worker clients are in recovery and can't easily travel, so we come to them when needed. Is the consultation really free? Yes. Every initial consultation with a Knisley attorney is free. There is no obligation to hire us, and no pressure if we decide your case isn't a good fit. We'll give you honest guidance either way. What should I bring to my first meeting? Bring any paperwork you have, including injury reports, claim denials, medical records, correspondence from the BWC or Social Security, and a photo ID. Don't worry if you don't have everything. We can request documents on your behalf. Does your Newark office have parking? Yes, our Newark office has convenient street parking available nearby. You can find a spot on the street and walk a short distance to the office for your appointment. You Do Not Have To Do This Alone Call us today for a free consultation. Let our family help you through this difficult time. Call For A Free Consultation