G9311 HCPCS Level II Code: No surgical site infection

Contextual Map

Every relationship of G9311 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Nearest codes (40)

• G9300 — Documentation of medical reason(s) for not completely infusing the prophylactic antibiotic prior to the inflation of the proximal tourniquet (e.g., a tourniquet was not used)[Sibling]
• G9301 — Patients who had the prophylactic antibiotic completely infused prior to the inflation of the proximal tourniquet[Sibling]
• G9302 — Prophylactic antibiotic not completely infused prior to the inflation of the proximal tourniquet, reason not given[Sibling]
• G9303 — Operative report does not identify the prosthetic implant specifications including the prosthetic implant manufacturer, the brand name of the prosthetic implant and the size of each prosthetic implant, reason not given[Sibling]
• G9304 — Operative report identifies the prosthetic implant specifications including the prosthetic implant manufacturer, the brand name of the prosthetic implant and the size of each prosthetic implant[Sibling]
• G9305 — Intervention for presence of leak of endoluminal contents through an anastomosis not required[Sibling]
• G9306 — Intervention for presence of leak of endoluminal contents through an anastomosis required[Sibling]
• G9307 — No return to the operating room for a surgical procedure, for complications of the principal operative procedure, within 30 days of the principal operative procedure[Sibling]
• and 32 more

Change history

• January 1, 2014 — Added to the code set [Change history]

Sources for this page

Every coding fact on this page is read from the datasets below. Nothing is AI-generated; MedCoder-derived relationships and editorial are labelled where they appear.

Code, descriptors, coverage and pricing attributes

CMS HCPCS Alpha-Numeric (ANWEB) release — July 2026 quarterly update

Change history and date-of-service validity

CMS HCPCS quarterly update files, ingested into the change ledger

Comparisons, relationships and the contextual map MedCoder-derived

Derived by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears

All data sources and release dates

Nearest Codes in This Family

Official HCPCS Level II classifications closest to G9311 in its code family, with their registry titles.

• G9306 — Intervention for presence of leak of endoluminal contents through an anastomosis required
• G9307 — No return to the operating room for a surgical procedure, for complications of the principal operative procedure, within 30 days of the principal operative procedure
• G9308 — Unplanned return to the operating room for a surgical procedure, for complications of the principal operative procedure, within 30 days of the principal operative procedure
• G9309 — No unplanned hospital readmission within 30 days of principal procedure
• G9310 — Unplanned hospital readmission within 30 days of principal procedure
• G9312 — Surgical site infection
• G9313 — Amoxicillin, with or without clavulanate, not prescribed as first line antibiotic at the time of diagnosis for documented reason
• G9314 — Amoxicillin, with or without clavulanate, not prescribed as first line antibiotic at the time of diagnosis, reason not given
• G9315 — Amoxicillin, with or without clavulanate, prescribed as a first line antibiotic at the time of diagnosis
• G9316 — Documentation of patient-specific risk assessment with a risk calculator based on multi-institutional clinical data, the specific risk calculator used, and communication of risk assessment from risk…