A medical treatment case is a work-related injury or illness that needs care beyond first aid, which makes it recordable under OSHA rules.

A medical treatment case (MTC) is a work-related injury or illness that requires medical treatment beyond first aid, but does not result in a fatality, days away from work, restricted work or job transfer. In the United States, a case involving medical treatment beyond first aid is recordable on the OSHA 300 log, even if the worker returns to normal duties right away.
Medical treatment cases are one of the main categories in injury reporting and are counted in the total recordable incident rate (TRIR). Many organizations also track them separately as a sign of injuries that were more than minor but did not cause lost time.
Under OSHA's recordkeeping rule, 29 CFR 1904.7, medical treatment means the management and care of a patient to combat disease or disorder. It does not include visits to a doctor or nurse solely for observation or counseling, diagnostic procedures such as X-rays and blood tests, or anything on OSHA's first aid list.
A case is recordable based on what treatment was provided or recommended by a licensed health care professional, not on who provided it. If a doctor recommends prescription medication and the worker chooses not to take it, the case is still recordable.
A warehouse worker cut his forearm on a sharp metal strap while opening a pallet. The site first aider cleaned the wound and applied a bandage, but the cut kept bleeding. The worker went to an urgent care clinic, where the doctor closed it with four stitches. He returned to his normal job the next day.
Because the cut needed sutures, the company recorded it on its OSHA 300 log as a medical treatment case. The investigation led the site to supply strap cutters and cut-resistant gloves at all receiving stations.
Yes. Any work-related injury or illness requiring medical treatment beyond first aid is recordable, even without lost time.
No. Diagnostic procedures alone, such as X-rays and blood tests, are not medical treatment under OSHA rules.
A medical treatment case needs care beyond first aid but the worker does not miss work. A lost time injury results in the worker missing at least one full scheduled shift after the injury day.
Part of SafetyIQ's EHS glossary: plain-English definitions of workplace health and safety terms.
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