| | Healthcare Industry | Medical Billing What is medical service code L3670? L3670 is the medical service code for Arthroscopy, ankle, surgical; synovectomy/excision of loose body/debridement. Medical Billing - Related Articles How to Determine Calories in Food How to Get Rid of Pigeons in a Barn How long will a head injury last? Stress and Mental What to Health Insurance Plans for Minors About Attention Deficit Disorder Learning Disability How to Make Peppermint Whiskey Cough Medicine