Summary & Overview
HCPCS C9756: Intraoperative ICG Near-Infrared Lymphatic Mapping
HCPCS Level II code C9756 denotes intraoperative near-infrared fluorescence lymphatic mapping of sentinel or tumor-draining lymph nodes using indocyanine green (icg) and is reported in addition to the primary surgical procedure. This technique supports more precise identification of lymphatic drainage pathways and sentinel nodes intraoperatively, which can influence staging and surgical decision-making for oncologic procedures. Nationally, use of fluorescence-guided lymphatic mapping has grown as surgical teams adopt imaging adjuncts that can improve node detection while potentially reducing morbidity from unnecessary node dissections.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication provides a national perspective on coverage and coding context for C9756, noting where data is available and indicating areas where information was not provided.
Readers will find: a concise explanation of what C9756 represents; service line and typical site-of-service context; an outline of common modifiers and administrative elements associated with reporting this add-on intraoperative service; and guidance on topics to review with payers and billing teams, including bundling considerations and documentation needs. Data not available in the input is clearly indicated where applicable.
Billing Code Overview
HCPCS Level II code C9756 describes intraoperative near-infrared fluorescence lymphatic mapping of lymph node(s) (sentinel or tumor draining) with administration of indocyanine green (icg).
Service type: Intraoperative lymphatic mapping with indocyanine green administration.
Typical site of service: Operating room or procedure suite during a surgical procedure.
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is a 58-year-old woman with a newly diagnosed, clinically node-negative invasive breast carcinoma scheduled for breast-conserving surgery. Intraoperatively, the surgical team performs sentinel lymph node biopsy using intraoperative near-infrared fluorescence lymphatic mapping with administration of indocyanine green (C9756) to identify sentinel or tumor-draining lymph nodes. Preoperative steps include informed consent, anesthesia evaluation, and allergy screening for ICG. In the operating room, after induction of anesthesia, the surgeon injects indocyanine green peritumorally or periareolarly, uses a near-infrared camera system to visualize lymphatic channels and sentinel nodes, and dissects the fluorescent nodes for pathologic assessment (frozen section or permanent pathology). The fluorescence mapping service is reported in addition to the primary surgical CPT code for the lumpectomy or mastectomy and sentinel lymph node biopsy procedure. Typical immediate postoperative workflow includes monitoring for allergic reaction, documentation of dye administration and imaging findings in the operative note, and submission of both the primary procedure code and the add-on C9756 for billing.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work required to perform the mapping is substantially greater than usual (document rationale and additional work) |