G9558Procedures and Professional Services (Temporary)
Patient treated with a beta-lactam antibiotic as definitive therapy
Short description: Tx beta-lactam abx therapy
- Effective date
- January 1, 2021
- Termination date
- —
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Frequently asked questions
What is HCPCS code G9558?
G9558 is a HCPCS Level II code for Patient treated with a beta-lactam antibiotic as definitive therapy.
What category is HCPCS code G9558 in?
G9558 falls under the Procedures and Professional Services (Temporary) category of HCPCS Level II.
When did HCPCS code G9558 become effective?
G9558 has been effective since January 1, 2021, per CMS's quarterly HCPCS update.
HCPCS Level II data from CMS (public domain). HCPCS Level I (CPT) codes are not included — CPT is copyrighted by the American Medical Association. Always verify codes with authoritative sources before making coding or billing decisions.