HCPCS Level II · Transportation, medical and surgical supplies
A4321Therapeutic agent for urinary catheter irrigation
✓ Active
Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About A4321
A4321 is an HCPCS Level II code in the A series (transportation, medical and surgical supplies), describing therapeutic agent for urinary catheter irrigation.
It was added to HCPCS effective 01/01/1997, and its current record took effect 01/01/2003.
Its Medicare coverage code is "D", meaning special Medicare coverage instructions apply.
Details
- Short description
- Cath therapeutic irrig agent
- Date added
- 01/01/1997
- Action effective
- 01/01/2003
- BETOS
- D1F
Related A43xx codes
- A4300Implantable access catheter, (e.g., venous, arterial, epidural subarachnoid, or peritoneal, etc.) external access
- A4301Implantable access total catheter, port/reservoir (e.g., venous, arterial, epidural, subarachnoid, peritoneal, etc.)
- A4305Disposable drug delivery system, flow rate of 50 ml or greater per hour
- A4306Disposable drug delivery system, flow rate of less than 50 ml per hour
- A4310Insertion tray without drainage bag and without catheter (accessories only)
- A4311Insertion tray without drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.)
- A4312Insertion tray without drainage bag with indwelling catheter, foley type, two-way, all silicone
- A4313Insertion tray without drainage bag with indwelling catheter, foley type, three-way, for continuous irrigation
- A4314Insertion tray with drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.)
- A4315Insertion tray with drainage bag with indwelling catheter, foley type, two-way, all silicone
- A4316Insertion tray with drainage bag with indwelling catheter, foley type, three-way, for continuous irrigation
- A4318Female external urinary collection cup, with or without ring attachment, per day
Common questions about A4321
Is HCPCS A4321 still valid?
- Yes. A4321 is active in the CMS October 2026 HCPCS file.
Does Medicare cover A4321?
- Its coverage code is "D": special Medicare coverage instructions apply. Check the local coverage determination for your region.