Fine needle aspiration biopsy
- Material is aspirated with a fine needle and the cells are examined cytologically
- Core needle biopsy is performed with a larger bore needle to obtain a core sample
- Use code 10021 for FNA without imaging guidance, first lesion and 10004 for each additional lesions
- There are codes for FNA include imaging guidance
- Add-on codes for additional lesions, also defined by type of imaging guidance used for the procedure
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