HCPCS Level II · Temporary national codes (non-Medicare)
S9355Home infusion therapy, chelation therapy; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
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Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About S9355
S9355 is an HCPCS Level II code in the S series (temporary national codes (non-Medicare)), describing home infusion therapy, chelation therapy; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem.
It was added to HCPCS effective 01/01/2002.
Its Medicare coverage code is "I", meaning it is not payable by Medicare (another code or method is used).
Details
- Short description
- Hit chelation diem
- Date added
- 01/01/2002
- Action effective
- 01/01/2002
- BETOS
- Z2
Related S93xx codes
- S9325Home infusion therapy, pain management infusion; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment, (drugs and nursing visits coded separately), per diem (do not use this code with s9326, s9327 or s9328)
- S9326Home infusion therapy, continuous (twenty-four hours or more) pain management infusion; administrative services, professional pharmacy services, care coordination and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
- S9327Home infusion therapy, intermittent (less than twenty-four hours) pain management infusion; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
- S9328Home infusion therapy, implanted pump pain management infusion; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
- S9329Home infusion therapy, chemotherapy infusion; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem (do not use this code with s9330 or s9331)
- S9330Home infusion therapy, continuous (twenty-four hours or more) chemotherapy infusion; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
- 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
- S9335Home therapy, hemodialysis; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing services coded separately), per diem
- S9336Home infusion therapy, continuous anticoagulant infusion therapy (e.g., heparin), administrative services, professional pharmacy services, care coordination and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
- S9338Home infusion therapy, immunotherapy, administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
- S9339Home therapy; peritoneal dialysis, administrative services, professional pharmacy services, care coordination and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
- S9340Home therapy; enteral nutrition; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (enteral formula and nursing visits coded separately), per diem
Common questions about S9355
Is HCPCS S9355 still valid?
- Yes. S9355 is active in the CMS October 2026 HCPCS file.
Does Medicare cover S9355?
- Its coverage code is "I": it is not payable by Medicare (another code or method is used). Check the local coverage determination for your region.