A7046 – Water chamber for humidifier, used with positive airway pressure device, replacement, each
HCPCS Level II code · A codes: Transportation, Medical & Surgical Supplies, Miscellaneous & Experimental
HCPCS codeA7046
- Long description
- Water chamber for humidifier, used with positive airway pressure device, replacement, each
- Short description
- Repl water chamber, pap dev
- Pricing indicator
32DME – inexpensive & routinely purchased- Medicare coverage
DSpecial coverage instructions apply- BETOS category
D1EOther DME- Added
- January 1, 2004
- Last change
- January 1, 2004 – No change
Frequently asked questions
What is HCPCS code A7046?
A7046 is a HCPCS Level II code for water chamber for humidifier, used with positive airway pressure device, replacement, each.
Does Medicare cover A7046?
The HCPCS file lists coverage code D: Special coverage instructions apply. Coverage and payment also depend on local coverage determinations and the patient’s plan.
Nearby A codes
- A7038 – Filter, disposable, used with positive airway pressure device
- A7039 – Filter, non disposable, used with positive airway pressure device
- A7040 – One way chest drain valve
- A7041 – Water seal drainage container and tubing for use with implanted chest tube
- A7042 – Implanted pleural catheter, each
- A7043 – Vacuum drainage bottle and tubing for use with implanted catheter
- A7044 – Oral interface used with positive airway pressure device, each
- A7045 – Exhalation port with or without swivel used with accessories for positive airway devices, replacement only
- A7047 – Oral interface used with respiratory suction pump, each
- A7048 – Vacuum drainage collection unit and tubing kit, including all supplies needed for collection unit change, for use with implanted catheter, each
- A7049 – Expiratory positive airway pressure intranasal resistance valve
- A7501 – Tracheostoma valve, including diaphragm, each
- A7502 – Replacement diaphragm/faceplate for tracheostoma valve, each
- A7503 – Filter holder or filter cap, reusable, for use in a tracheostoma heat and moisture exchange system, each
- A7504 – Filter for use in a tracheostoma heat and moisture exchange system, each
- A7505 – Housing, reusable without adhesive, for use in a heat and moisture exchange system and/or with a tracheostoma valve, each
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.