# Need help to map placement of NEPHROURETEROSTOMY RF

**URL:** <https://forum.loinc.org/t/need-help-to-map-placement-of-nephroureterostomy-rf/3088>\
**Category:** General\
**Created:** [June 16, 2026, 8:07pm UTC](https://forum.loinc.org/t/need-help-to-map-placement-of-nephroureterostomy-rf/3088 "2026-06-16T20:07:48Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![salve58](https://forum.loinc.org/letter_avatar_proxy/v4/letter/s/898d66/32.png) [@salve58](https://forum.loinc.org/u/salve58)\
**Post date:** [June 16, 2026, 8:07pm UTC](https://forum.loinc.org/t/need-help-to-map-placement-of-nephroureterostomy-rf/3088/1 "2026-06-16T20:07:48Z")

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We are looking for a LOINC code to map for placement of NEPHROURETEROSTOMY via RF. I do not see any available code for this. But while looking for possible LOINC code it appears that the ‘System’ is the same for NEPHROURETEROSTOMY and nephrostomy. For example,

86390-2 Views^W contrast via nephrostomy tube  
System = Abdomen\>Kidney & Abdomen+Pelvis\>Ureter & Pelvis\>Urinary bladder

87188-9 Guidance for percutaneous exchange of nephroureteral stent

System = Abdomen\>Kidney & Abdomen+Pelvis\>Ureter & Pelvis\>Urinary bladder

I believe that there is a difference between NEPHROURETEROSTOMY and nephrostomy?

**A nephrostomy drains urine out of the kidney into an external bag, while a nephroureterostomy uses a longer tube that threads through the kidney, down the ureter, and into the bladder**.

See link for more information .

> **[DI-INFO-Care\_After\_Nephrostomy\_and\_Nephroureterostomy\_Tube\_Insertion1.pdf](https://www.osmh.on.ca/uploads/2022/04/DI-INFO-Care_After_Nephrostomy_and_Nephroureterostomy_Tube_Insertion1.pdf)**

My question then is, why is the system for 86390-2 nephrostomy including urinary bladder instead of just kidney?

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**Author:** ![pitk0006](https://forum.loinc.org/letter_avatar_proxy/v4/letter/p/c89c15/32.png) [@pitk0006](https://forum.loinc.org/u/pitk0006)\
**Post date:** [June 16, 2026, 9:36pm UTC](https://forum.loinc.org/t/need-help-to-map-placement-of-nephroureterostomy-rf/3088/2 "2026-06-16T21:36:26Z")

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This sounds like a question for the LOINC team in the event they need to update existing codes and/or create new one(s). Have you asked them?

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**Author:** ![ehafeza](https://forum.loinc.org/letter_avatar_proxy/v4/letter/e/43a26b/32.png) [@ehafeza](https://forum.loinc.org/u/ehafeza)\
**Post date:** [June 16, 2026, 10:45pm UTC](https://forum.loinc.org/t/need-help-to-map-placement-of-nephroureterostomy-rf/3088/3 "2026-06-16T22:45:38Z")

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Yes Thank you Andrea!

Hi Salve, I agree. I did some preliminary check, and we can edit to release 2.83. I will take for editing.

Thank you

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**Author:** ![salve58](https://forum.loinc.org/letter_avatar_proxy/v4/letter/s/898d66/32.png) [@salve58](https://forum.loinc.org/u/salve58)\
**Post date:** [June 17, 2026, 12:58pm UTC](https://forum.loinc.org/t/need-help-to-map-placement-of-nephroureterostomy-rf/3088/4 "2026-06-17T12:58:08Z")

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Hi Eza and Andrea, thank you for the quick reply and action.