Fine needle aspiration biopsy. do i need to repot as an operation or surgery?

Not likely: This type of biopsy, using a small needle, is usually done as a minor office procedure, possibly with ultrasound guidance. You likely can eat before the procedure, but should probably have someone available to bring you home after the biopsy. But check first with your medical provider.

No: A fine needle aspiration(fna) refers to a skinny needle (18g or less) to remove cellular material for cytology evaluation. This is generally done in the office and should take 5min or less. No prep is necessary and no restrictions after. A core bx is also an office procedure using a 14g or larger needle to remove tissue samples for histology. Core bx but not fna is usually counted in risk calc.

Not surgery: The line btw surgeries/operations and tests/procedures is blurry, but in general, i advise patients to report procedures that result in a permanent change on their surgical history, and conditions requiring a biopsy or other test under medical history. So fnab (benign) might be a comment under thyroid nodule or breast mass in a medical history, but thyroidectomy would go under surgical history.