All codes
L170
L170 – L170
OHIP Dermatology Code · Schedule of Benefits
When to Use
- Use L170 when performing a diagnostic or therapeutic aspiration of a joint or bursa, such as a knee or shoulder effusion.
- Bill L170 when performing a diagnostic paracentesis or thoracentesis procedure in an office or clinic setting.
Common Pitfalls
- Do not bill L170 in addition to a minor surgical procedure code if the aspiration is considered an integral part of that procedure's global fee.
- Avoid billing L170 with an office visit code (A007) unless the visit involves a separate, unrelated clinical issue that is fully documented.
- L170 is often rejected if billed on the same day as a major surgical procedure on the same anatomical site without a valid diagnostic code indicating a separate pathology.
Billing Tips
- Ensure the procedure note clearly distinguishes the aspiration from any injection (e.g., G372) if both are performed, as L170 covers the fluid removal component.
Provider Fee$32.81
Effective: April 1, 2018
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