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2025 HCPCS code A4427

Ostomy pouch, drainable; for use on barrier with locking flange, with filter, two piece system, each.

Medical necessity for this code is established by the patient having an ostomy that requires the use of a drainable pouch with a filter and a locking flange barrier.

In simple words: This is a code for a drainable bag that collects waste from a surgical opening (stoma). The bag has a resealable end for emptying and attaches to a skin barrier with a secure locking ring.It also includes a filter to reduce odor.

This code represents a drainable ostomy pouch designed for use with a barrier featuring a locking flange.This two-piece system includes a filter in the pouch to control odor.

Example 1: A patient with a colostomy requires a drainable ostomy pouch with a filter. The pouch is designed to be used with a barrier that has a locking flange for a secure fit., A patient with an ileostomy needs a two-piece ostomy system. They choose a drainable pouch with a filter to manage output and odor, attaching it to a compatible barrier with a locking flange. , Following urostomy surgery, a patient is fitted with a drainable ostomy pouch designed to attach to a skin barrier with a locking flange.The pouch includes a filter to minimize odor.

Documentation should support the medical necessity of the ostomy supplies. This could include the type of ostomy, the condition of the peristomal skin, and the patient's ability to manage the ostomy appliance.

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