Find policies, billing codes, payers, states, and providers
CPT 36556: Central Venous Access Catheter Insertion, Age 5 and Older
CPT code 36556 designates the insertion of a central venous access catheter in the neck, chest, or groin for patients aged 5 years and older, enabling blood draws or administration of medications and parenteral nutrition. This procedure is a core facility-based vascular access service with implications for inpatient care, emergency interventions, and procedural suites across the United States. Nationally, consistent coding for central venous access affects quality measurement, resource allocation, and billing clarity for acute and chronic care settings.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, United Healthcare, and Medicare. Readers will find a concise overview of clinical context and coding scope, payer coverage alignment, and comparative benchmarks where available. The publication also outlines common clinical indications and relevant ICD-10 diagnoses associated with central venous access procedures.
The report presents what to expect in claims submission for CPT code 36556, typical sites of service, and related procedural distinctions. It highlights differences from related pediatric coding and adjacent codes used for other central line insertions, and provides a framework for understanding payer policy variation without offering clinical or billing advice. Data not available in the input is noted where applicable.
Customize your policy alerts
Sign up for cpt 36556 policy alerts
Get alerted when payer policies referencing 36556 are released or updated.
Monitor payer policy activity
Billing Code Overview
CPT code 36556 describes the insertion of a central venous access catheter in the neck, chest, or groin for patients 5 years of age or older. The procedure is intended to provide central venous access for drawing blood or administering medication or nutrients.
Service type: Central venous catheter insertion (non-tunneled/tunneled as clinically indicated) — central venous access procedure
Typical site of service: Hospital inpatient or outpatient procedural area, ambulatory surgery center, or emergency department, depending on clinical urgency and facility resources.
National Reimbursement Benchmarks
Across payers, Medicare’s mean rate of $246.70 sits below BUCA’s average commercial mean of $797.70, indicating a substantial spread between federal reimbursement and this commercial benchmark. Median values where available (for example, Cigna and UnitedHealth Group) are generally aligned with their means, while BUCA’s median of $856.40 is notably higher than Medicare’s median of $244.00, reinforcing that BUCA-level commercial contracts are well above Medicare averages.
Dispersion measured as the interquartile range (P75 minus P25) is widest for Blue Cross Blue Shield at $1,342.00 (P75 $1,784.40 minus P25 $420.70), followed by BUCA at $880.60 (P75 $1,161.90 minus P25 $298.30). Tightest IQRs are seen with Aetna at $169.30 (P75 $247.10 minus P25 $78.00) and Medicare at $29.00 (P75 $257.00 minus P25 $228.00), indicating relatively concentrated reimbursement around the median for those payers.