S9558

S9558 — Home injectable therapy; growth hormone, including administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem

HCPCSActiveBETOS Z2

S9558 is a HCPCS Level II code for home injectable therapy; growth hormone, including administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem. It belongs to the Temporary National Codes (Non-Medicare) section. Medicare does not pay it — see the coverage note below before you bill it.

Medicare coverage: Not payable by Medicare

Medicare does not pay this code. It may still be valid for another payer, but a Medicare claim carrying it will not be reimbursed.

From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.

Physician fee schedule statusI

Not valid for Medicare purposes. Medicare uses another code.

Global period: XXX

Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.

The CMS record for S9558

Long descriptor: Home injectable therapy; growth hormone, including administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
Short descriptor: Ht inj growth horm diem
Added: January 1, 2002
BETOS: Z2
Pricing indicator: 00 — Not priced by Part B

Codes adjacent to S9558

HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If S9558 is not quite right, the correct code is very often within a few positions of it.

S9501Home infusion therapy, antibiotic, antiviral, or antifungal therapy; once every 12 hours; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
S9502Home infusion therapy, antibiotic, antiviral, or antifungal therapy; once every 8 hours, administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
S9503Home infusion therapy, antibiotic, antiviral, or antifungal; once every 6 hours; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
S9504Home infusion therapy, antibiotic, antiviral, or antifungal; once every 4 hours; administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
S9529Routine venipuncture for collection of specimen(s), single home bound, nursing home, or skilled nursing facility patient
S9537Home therapy; hematopoietic hormone injection therapy (e.g., erythropoietin, g-csf, gm-csf); administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
S9538Home transfusion of blood product(s); administrative services, professional pharmacy services, care coordination and all necessary supplies and equipment (blood products, drugs, and nursing visits coded separately), per diem
S9542Home injectable therapy, not otherwise classified, including administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
S9559Home injectable therapy, interferon, including administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
S9560Home injectable therapy; hormonal therapy (e.g.; leuprolide, goserelin), including administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
S9562Home injectable therapy, palivizumab or other monoclonal antibody for rsv, including administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
S9563Home injectable therapy, immunotherapy, including administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
S9590Home therapy, irrigation therapy (e.g., sterile irrigation of an organ or anatomical cavity); including administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem
S9810Home therapy; professional pharmacy services for provision of infusion, specialty drug administration, and/or disease state management, not otherwise classified, per hour (do not use this code with any per diem code)
S9900Services by a journal-listed christian science practitioner for the purpose of healing, per diem
S9901Services by a journal-listed christian science nurse, per hour

Questions about S9558

What is HCPCS code S9558?

S9558 is a HCPCS Level II code for home injectable therapy; growth hormone, including administrative services, professional pharmacy services, care coordination, and all necessary supplies and equipment (drugs and nursing visits coded separately), per diem. It sits in the Temporary National Codes (Non-Medicare) section.

Does Medicare cover S9558?

The CMS HCPCS file marks S9558 as "Not payable by Medicare". Medicare does not pay this code. It may still be valid for another payer, but a Medicare claim carrying it will not be reimbursed.

How is S9558 paid under the physician fee schedule?

S9558 carries PFS status code I. Not valid for Medicare purposes. Medicare uses another code.