Summary & Overview
HCPCS G9311: No Surgical Site Infection
HCPCS Level II code G9311 denotes documentation of no surgical site infection after a surgical procedure. Nationally, precise coding for postoperative infection status is important for performance measurement, quality reporting, and accurate clinical records. Clear use of G9311 helps distinguish uncomplicated recoveries from cases requiring further intervention, influencing quality metrics and post-acute care pathways.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of how G9311 is used in clinical documentation and billing contexts, typical sites of service, common modifiers associated with postoperative assessment encounters, and guidance on where data is not available. The publication also outlines implications for quality reporting and administrative coding processes, and highlights areas where policy updates or payer-specific billing rules may affect claim adjudication.
This summary addresses clinical context, documentation expectations, and the administrative role of G9311 in postoperative reporting. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code G9311 indicates No surgical site infection. This code documents the clinical assessment that a patient has not developed a surgical site infection following a procedure.
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Service type: Postoperative assessment / surgical follow-up
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Typical site of service: Outpatient surgical follow-up visit or postoperative clinic evaluation
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient scenario involves a postoperative evaluation following a clean surgical procedure (for example, elective laparoscopic cholecystectomy or hernia repair) in which the surgeon documents the absence of a surgical site infection. The patient presents for a routine wound check at the surgical clinic 7–14 days after the operation, reporting normal healing, minimal pain controlled with oral analgesics, no purulent drainage, no increasing erythema, and no systemic signs of infection (fever, tachycardia). The clinician performs a focused wound inspection, documents intact incisions without drainage, palpates for fluctuance or induration, confirms absence of erythema spreading beyond the immediate incision, and records the finding as “no surgical site infection.” The workflow includes review of the operative note, assessment of wound appearance, reconciliation of postoperative antibiotics (if any), and documentation of wound status in the medical record. If the visit is for routine postoperative care without complications, the encounter may be billed with the appropriate postoperative follow-up or evaluation code and the G9311 HCPCS Level II code is used to indicate a documented absence of surgical site infection for quality reporting or tracking purposes.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work required is substantially greater than usually required (rare for a simple wound check). |