A7046 HCPCS Level II code: Water chamber for humidifier, used with positive airway pressure device, replacement, each
A7046 is the HCPCS code for “Water chamber for humidifier, used with positive airway pressure device, replacement, each” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
A7046Water chamber for humidifier, used with positive airway pressure device, replacement, each
Short description: Repl water chamber, pap dev
HCPCS · United States
Medicare details
The indicators CMS publishes with A7046 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Special coverage instructions apply
- Medicare pricing
- DMEPOS fee schedule – Inexpensive & routinely purchased DME (price subject to floors and ceilings)
- Type of service
- Lump sum purchase of DME, prosthetics, orthotics
- BETOS category
- Other DME
- Added
- Jan 1, 2004
Where A7046 sits
- 1A codesAmbulance, supplies and miscellaneous
- 2Active code A7046Water chamber for humidifier, used with positive airway pressure device, replacement, each
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code A7046 mean?
A7046 is the HCPCS code for “Water chamber for humidifier, used with positive airway pressure device, replacement, each” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover A7046?
CMS lists A7046’s Medicare coverage as “Special coverage instructions apply” and its pricing as “DMEPOS fee schedule – Inexpensive & routinely purchased DME (price subject to floors and ceilings)”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside A7046
All A codesA7040One way chest drain valveA7041Water seal drainage container and tubing for use with implanted chest tubeA7042Implanted pleural catheter, eachA7043Vacuum drainage bottle and tubing for use with implanted catheterA7044Oral interface used with positive airway pressure device, eachA7045Exhalation port with or without swivel used with accessories for positive airway devices, replacement onlyA7047Oral interface used with respiratory suction pump, eachA7048Vacuum drainage collection unit and tubing kit, including all supplies needed for collection unit change, for use with implanted catheter, eachA7049Expiratory positive airway pressure intranasal resistance valveA7501Tracheostoma valve, including diaphragm, eachA7502Replacement diaphragm/faceplate for tracheostoma valve, eachA7503Filter holder or filter cap, reusable, for use in a tracheostoma heat and moisture exchange system, each