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Z600
Z600 – Change of nephrostomy tube
OHIP Psychiatric Code — UROGENITAL AND URINARY SURGICAL PROCEDURES · Schedule of Benefits
This service is for the surgical replacement of an existing nephrostomy tube, a catheter inserted through the skin into the kidney for the purpose of draining urine.
When to Use
- Use Z600 for the routine or urgent surgical exchange of an existing nephrostomy tube where the tract is already established.
- Use this code when the procedure is performed as a standalone surgical service, distinct from the initial placement or complex revision procedures.
Common Pitfalls
- Do not bill Z600 in addition to a consultation or visit code on the same day unless the visit is for an unrelated condition and is clearly documented with a separate diagnosis.
- Avoid billing Z600 if the procedure is performed as part of a more comprehensive urological surgery; ensure you are not unbundling services that should be covered under a global surgical fee.
- Failure to document the indication for the exchange (e.g., tube blockage, dislodgement, or scheduled maintenance) can lead to audit scrutiny regarding medical necessity.
Billing Tips
- If the tube exchange is performed under fluoroscopic guidance, ensure you are billing the appropriate imaging codes if applicable, as Z600 covers the surgical component of the exchange itself.
- Always verify if the patient qualifies for age-based premiums (e.g., under 16 years) or after-hours premiums (E409/E410) if the exchange is performed on an emergent, non-elective basis outside of standard office hours.
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