S5551 HCPCS Level II code: Insulin, most rapid onset (lispro or aspart); 5 units
S5551 is the HCPCS code for “Insulin, most rapid onset (lispro or aspart); 5 units” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
S5551Insulin, most rapid onset (lispro or aspart); 5 units
Short description: Insulin most rapid 5 u
HCPCS · United States
Medicare details
The indicators CMS publishes with S5551 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Not payable by Medicare
- Medicare pricing
- Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)
- Type of service
- Other medical items or services
- BETOS category
- Undefined codes
- Added
- Oct 1, 2003
Where S5551 sits
- 1S codesTemporary national codes (non-Medicare)
- 2Active code S5551Insulin, most rapid onset (lispro or aspart); 5 units
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 S5551 mean?
S5551 is the HCPCS code for “Insulin, most rapid onset (lispro or aspart); 5 units” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover S5551?
CMS lists S5551’s Medicare coverage as “Not payable by Medicare” and its pricing as “Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)”. 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 S5551
All S codesS5518Home infusion therapy, all supplies necessary for catheter repairS5520Home infusion therapy, all supplies (including catheter) necessary for a peripherally inserted central venous catheter (picc) line insertionS5521Home infusion therapy, all supplies (including catheter) necessary for a midline catheter insertionS5522Home infusion therapy, insertion of peripherally inserted central venous catheter (picc), nursing services only (no supplies or catheter included)S5523Home infusion therapy, insertion of midline venous catheter, nursing services only (no supplies or catheter included)S5550Insulin, rapid onset, 5 unitsS5552Insulin, intermediate acting (nph or lente); 5 unitsS5553Insulin, long acting; 5 unitsS5560Insulin delivery device, reusable pen; 1.5 ml sizeS5561Insulin delivery device, reusable pen; 3 ml sizeS5565Insulin cartridge for use in insulin delivery device other than pump; 150 unitsS5566Insulin cartridge for use in insulin delivery device other than pump; 300 units