Summary & Overview
HCPCS A4406: Pectin-Based Ostomy Skin Barrier Paste, Per Ounce
HCPCS Level II code A4406 designates a pectin-based ostomy skin barrier paste, billed per ounce. Ostomy skin barriers and pastes are essential components of ostomy care, protecting peristomal skin, enhancing appliance adhesion, and reducing leakage-related complications. Nationally, accurate coding for ostomy supplies affects patient access to needed durable medical supplies and informs payer coverage and reimbursement policy.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical role of this supply, typical sites of service (home and outpatient wound/ostomy clinics), and the dimensions of billing practice relevant to A4406. The publication outlines common modifiers and payer considerations where available, highlights typical documentation elements, and summarizes which aspects of coverage and claims processing most commonly affect authorization and payment for ostomy barrier pastes.
This summary is intended for clinicians, DME suppliers, billers, and policy analysts seeking a practical reference for the clinical purpose and billing context of HCPCS Level II code A4406. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code A4406 describes an ostomy skin barrier, specifically a pectin-based paste supplied per ounce. This product is used to protect peristomal skin and create a seal around an ostomy appliance.
Service type: Ostomy supply — skin barrier/paste
Typical site of service: Home health or outpatient care settings where ostomy supplies are managed, including patient self-care at home and outpatient wound/ostomy clinics.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with a permanent or temporary stoma (colostomy, ileostomy, or urostomy) who requires topical ostomy skin protection due to peristomal skin irritation, excoriation, or to improve appliance adhesion. The patient presents in an outpatient wound-ostomy-continence clinic, home health visit, or outpatient durable medical equipment (DME) supply encounter. The ostomy nurse assesses the peristomal skin, measures the stoma, and applies or supplies a pectin-based ostomy skin barrier paste (A4406) by ounce to fill creases, protect excoriated skin, and create a seal between the stoma and the appliance. The clinical workflow includes wound-ostomy assessment, selection of an appropriate pouching system, documentation of stoma size and peristomal skin condition, application or dispensing of the paste in the appropriate quantity, patient education on use and storage, and billing through DME or outpatient supply channels. Typical documentation includes stoma diagnosis, indication for skin barrier paste, quantity dispensed, and any follow-up plan.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | Default when no specific modifier applies |
11 |