G9961 HCPCS Level II code: Systemic antimicrobials prescribed

G9961 is the HCPCS code for “Systemic antimicrobials prescribed” in CMS’s October 2026 release, in effect from Oct 1, 2026.

Official description

G9961

Systemic antimicrobials prescribed

Short description: Systemic antimicro presc

HCPCS · United States

Medicare details

The indicators CMS publishes with G9961 in its October 2026 file. They describe Medicare’s handling, not another payer’s.

Medicare coverage
Carrier judgment
Medicare pricing
Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)
Type of service
Medical care
BETOS category
Undefined codes
Added
Jan 1, 2018

Where G9961 sits

  1. 1G codesProcedures and professional services
  2. 2Active code G9961Systemic antimicrobials prescribed

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 G9961 mean?

G9961 is the HCPCS code for “Systemic antimicrobials prescribed” in CMS’s HCPCS Level II October 2026 release.

Does Medicare cover G9961?

CMS lists G9961’s Medicare coverage as “Carrier judgment” 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.

G9955Cases in which an inhalational anesthetic is used only for inductionG9956Patient received combination therapy consisting of at least two prophylactic pharmacologic anti-emetic agents of different classes preoperatively and/or intraoperativelyG9957Documentation of medical reason for not receiving combination therapy consisting of at least two prophylactic pharmacologic anti-emetic agents of different classes preoperatively…G9958Patient did not receive combination therapy consisting of at least two prophylactic pharmacologic anti-emetic agents of different classes preoperatively and/or intraoperativelyG9959Systemic antimicrobials not prescribedG9960Documentation of medical reason(s) for prescribing systemic antimicrobialsG9962Embolization endpoints are documented separately for each embolized vessel and ovarian artery angiography or embolization performed in the presence of variant uterine artery…G9963Embolization endpoints are not documented separately for each embolized vessel or ovarian artery angiography or embolization not performed in the presence of variant uterine…G9964Patient received at least one well-child visit with a pcp during the performance periodG9965Patient did not receive at least one well-child visit with a pcp during the performance periodG9966Children who were screened for risk of developmental, behavioral and social delays using a standardized tool with interpretation and reportG9967Children who were not screened for risk of developmental, behavioral and social delays using a standardized tool with interpretation and report