By Irfan Siddiqui, D.O., FACC, FSCAI, board-certified interventional cardiologist and Florida Expert Medical Advisor ·
Section 112.18 of the Florida Statutes presumes that tuberculosis, heart disease or hypertension causing disability or death in a covered firefighter, law enforcement officer, correctional officer or correctional probation officer was accidental and suffered in the line of duty, unless the contrary is shown by competent evidence. In a workers’ compensation claim, the judge applies that rule, but the facts it turns on are largely clinical.
What the statute covers
The presumption reaches Florida state, municipal, county, port authority, special tax district and fire control district firefighters, and law enforcement, correctional and correctional probation officers as defined in s. 943.10(1), (2) and (3). It is often called the “heart-lung” presumption because tuberculosis is one of its three conditions. Other conditions are addressed in separate sections, such as s. 112.1816 for certain cancers in firefighters.
The first medical question is the diagnosis itself. “Heart disease” is a broad phrase. A useful opinion names the condition precisely (coronary artery disease, a cardiomyopathy, a specific arrhythmia), identifies the testing that established it and gives the date it was first documented. Whether a particular diagnosis falls within the statute is for counsel and the judge of compensation claims; the physician’s job is to make the diagnosis unambiguous.
The entry physical examination
The presumption requires that the worker passed a physical examination on entering service that “failed to reveal any evidence” of the condition. For a firefighter who had no preemployment physical, the medical examination required by s. 633.412(5) can satisfy the requirement if it showed no evidence of tuberculosis, heart disease or hypertension. The employing fire service provider must keep a firefighter’s examination records for at least five years after separation; if it does not, the requirement is presumed met.
Reading an entry examination is medical work. A single elevated blood pressure reading is not the same as a diagnosis of hypertension. The 2017 ACC/AHA blood pressure guideline, whose thresholds the 2025 AHA/ACC guideline kept, bases the diagnosis on an average of two or more readings taken on two or more occasions and defines stage 1 hypertension as 130–139 systolic or 80–89 diastolic. Many entry examinations were performed when the commonly used threshold was 140/90 (JNC 7, 2003). A defensible opinion states which readings it relies on, which definition it applies and why. The same care applies to an entry ECG, chest imaging or tuberculosis screening result.
Disability, and when it began
The condition must have resulted in total or partial disability or death. The physician can establish the date of onset, the functional limitation and how the documented condition explains it. Building the record into a clinical timeline usually answers these questions faster than reading it in the order it was produced.
What rebuttal evidence looks like medically
The presumption yields to competent evidence to the contrary. How much evidence is required, and of what kind, is a legal standard Florida’s appellate courts have addressed; counsel will frame it. Medically, rebuttal usually means an explained alternative cause. Coronary disease and hypertension are multifactorial: tobacco use, diabetes, lipid disorders, family history, obstructive sleep apnea and certain medications or substances all bear on them. The presence of a risk factor raises probability; it does not by itself establish cause, and its absence does not exclude one. An opinion that lists risk factors without explaining how they apply to this worker adds little.
Treatment adherence for officers
For claims under s. 112.18 and chapter 440 occurring on or after July 1, 2010, a law enforcement, correctional or correctional probation officer is presumed not to have incurred the condition in the line of duty if he or she departed in a material fashion from the prescribed course of treatment and the departure is shown to have caused a significant aggravation resulting in disability or increasing the disability or need for treatment. “Prescribed course of treatment” means the courses of action and medicines prescribed for the specific disease, as documented in the prescribing physician’s records. Each part of that is medical: what was prescribed, whether the record shows a material departure, and whether that departure caused significant aggravation. If those points are disputed, the officer may seek an independent medical examination under s. 440.13(5). Separately, officers must make a claim before or within 180 days after leaving the employing agency.
Treatment by a specialist
Section 112.18(3) allows a covered worker with a compensable presumptive condition to be treated by a medical specialist: a physician licensed under chapter 458 or 459 with board certification in a specialty that includes care of the condition. After written notice, the carrier must authorize the selected specialist or one with the same or greater qualifications, and schedule an appointment within 30 days. Reimbursement is capped at 200 percent of the Medicare rate.
Where an independent opinion fits
When treating physicians disagree, the parties may use an independent medical examination or the Florida Expert Medical Advisor process under s. 440.13(9). In either role, the cardiologist answers the questions asked, from the record, and shows the reasoning. A clear referral question (diagnosis, entry examination, alternative causes, adherence) makes that work faster and the answer easier to use. To discuss scope, book an attorney conference.
Primary sources
Irfan Siddiqui, D.O., FACC, FSCAI, is a board-certified interventional cardiologist and Florida Expert Medical Advisor. About Dr. Siddiqui · Schedule with EMAC
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