S9331 HCPCS Level II code: Home infusion therapy, intermittent (less than twenty-four hours) chemotherapy infusion; administrative services, professional pharmacy services, care…
S9331 is the HCPCS code for “Home infusion therapy, intermittent (less than twenty-four hours) chemotherapy infusion; administrative services, professional pharmacy services, care coordination, and all necessary supplies and…” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
S9331Home infusion therapy, intermittent (less than twenty-four hours) chemotherapy infusion; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
Short description: Hit intermit chemo diem
HCPCS · United States
Notes for S9331
As CMS prints them, with any note S9331 takes from the headings above it.
Note
- CMS processing note 0088: "S" CODES ARE UNIQUE TEMPORARY CODES ESTABLISHED BY BCBSA AND HIAA FOR PRIVATE PAYOR USE. THEY ARE NOT VALID NOR PAYABLE BY MEDICARE.
Medicare details
The indicators CMS publishes with S9331 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
- Jan 1, 2002
Where S9331 sits
- 1S codesTemporary national codes (non-Medicare)
- 2Active code S9331Home infusion therapy, intermittent (less than twenty-four hours) chemotherapy infusion; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
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 S9331 mean?
S9331 is the HCPCS code for “Home infusion therapy, intermittent (less than twenty-four hours) chemotherapy infusion; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover S9331?
CMS lists S9331’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 S9331
All S codesS9325Home infusion therapy, pain management infusion; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment, (drugs and…S9326Home infusion therapy, continuous (twenty-four hours or more) pain management infusion; administrative services, professional pharmacy services, care coordination and all…S9327Home infusion therapy, intermittent (less than twenty-four hours) pain management infusion; administrative services, professional pharmacy services, care coordination, and all…S9328Home infusion therapy, implanted pump pain management infusion; administrative services, professional pharmacy services, care coordination, and all necessary supplies and…S9329Home infusion therapy, chemotherapy infusion; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and…S9330Home infusion therapy, continuous (twenty-four hours or more) chemotherapy infusion; administrative services, professional pharmacy services, care coordination, and all necessary…S9335Home therapy, hemodialysis; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing services coded…S9336Home infusion therapy, continuous anticoagulant infusion therapy (e.g., heparin), administrative services, professional pharmacy services, care coordination and all necessary…S9338Home infusion therapy, immunotherapy, administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing…S9339Home therapy; peritoneal dialysis, administrative services, professional pharmacy services, care coordination and all necessary supplies and equipment (drugs and nursing visits…S9340Home therapy; enteral nutrition; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (enteral formula and nursing…S9341Home therapy; enteral nutrition via gravity; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (enteral formula…