Recordkeeping Requirements
Many employers with more than 10 employees are required to keep a record of serious work-related injuries and illnesses. (Certain low-risk industries are exempted.) Minor injuries requiring first aid only do not need to be recorded.
 How does OSHA define a recordable injury or illness?

How does OSHA define a recordable injury or illness?
o Any work-related fatality.
o Any work-related injury or illness that results in loss of consciousness, days away from work, restricted work, or transfer to another job.
o Any work-related injury or illness requiring medical treatment beyond first aid.
o Any work-related diagnosed case of cancer, chronic irreversible diseases, fractured or cracked bones or teeth, and punctured eardrums.
o There are also special recording criteria for work-related cases involving: needlesticks and sharps injuries; medical removal; hearing loss; and tuberculosis.
 How does OSHA define first aid?

See full article here.