Billing code
Z593A — Nasobiliary Catheter Insertion
Nasobiliary catheter insertion
Bill for inserting a nasobiliary catheter, listed with the ERCP codes.
Watch for: It is a separate Z code, not one of the add-ons payable with Z561, Z558 or Z760.
| Provider | Specialist | Assistant | Anaesthetist | Non-anaesthetist |
|---|---|---|---|---|
| $55.25 | $0.00 | $0.00 | $0.00 | $0.00 |
- Code
- Z593A
- Description
- Nasobiliary Catheter Insertion
- FHO+ basket
- Not in the FHO+ base rate basket (Schedule 2 or 2B).
- Effective date
- Apr 1, 2025
- Termination date
- No end date
Explanation
Updated October 26, 2026
Insertion of a nasobiliary catheter, listed with the ERCP codes in the biliary tract section.
What it covers
Z593 is nasobiliary catheter insertion, listed under endoscopic retrograde cholangiopancreatography (ERCP) in the biliary tract section (S30).
Billing rules
- It is a separate Z code, not one of the add-ons listed as payable with Z561, Z558 or Z760 (S30).
- Z codes are independent operative procedures: if your major pre-operative visit was in the prior 12 months, only a partial assessment is payable before the procedure that day; if the major pre-operative visit is that day, no other assessment is payable before it (SP4).
- Marked #: premises, equipment, supplies and staff are funded by the hospital budget or ICHSC facility costs, and patients can't be charged for them (GP13).
- Under-16 age premiums (10–30%) apply to surgical procedures in Parts K to Z (GP64).
Related codes: Z561, Z558, Z760, E680, S233
Source: Schedule of Benefits (July 1, 2026), Digestive System Surgical Procedures, Biliary Tract, page S30.
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