A9544 HCPCS Level II code: Iodine i-131 tositumomab, diagnostic, per study dose
CMS terminated A9544: its last date of service was Dec 31, 2016. It stays here for looking up older claims; newer services need a current code.
Official description
A9544Iodine i-131 tositumomab, diagnostic, per study dose
Short description: I131 tositumomab, dx
HCPCS · United States
Medicare details
The indicators CMS publishes with A9544 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Carrier judgment
- Medicare pricing
- Other carrier priced
- Type of service
- Diagnostic radiology
- BETOS category
- Standard imaging - nuclear medicine
- Added
- Jan 1, 2006
- Terminated after
- Dec 31, 2016
Where A9544 sits
- 1A codesAmbulance, supplies and miscellaneous
- 2Terminated A9544Iodine i-131 tositumomab, diagnostic, per study dose
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
Is HCPCS code A9544 still valid?
No. CMS terminated A9544; its last date of service was Dec 31, 2016. It is listed for looking up services from before then. Use a current code for newer services.
Does Medicare cover A9544?
CMS lists A9544’s Medicare coverage as “Carrier judgment” and its pricing as “Other carrier priced”. 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 A9544
All A codesA9538Technetium tc-99m pyrophosphate, diagnostic, per study dose, up to 25 millicuriesA9539Technetium tc-99m pentetate, diagnostic, per study dose, up to 25 millicuriesA9540Technetium tc-99m macroaggregated albumin, diagnostic, per study dose, up to 10 millicuriesA9541Technetium tc-99m sulfur colloid, diagnostic, per study dose, up to 20 millicuriesA9542Indium in-111 ibritumomab tiuxetan, diagnostic, per study dose, up to 5 millicuriesA9543Yttrium y-90 ibritumomab tiuxetan, therapeutic, per treatment dose, up to 40 millicuriesA9545Iodine i-131 tositumomab, therapeutic, per treatment doseA9546Cobalt co-57/58, cyanocobalamin, diagnostic, per study dose, up to 1 microcurieA9547Indium in-111 oxyquinoline, diagnostic, per 0.5 millicurieA9548Indium in-111 pentetate, diagnostic, per 0.5 millicurieA9550Technetium tc-99m sodium gluceptate, diagnostic, per study dose, up to 25 millicurieA9551Technetium tc-99m succimer, diagnostic, per study dose, up to 10 millicuries