CPT 00921: Anesthesia for Vasectomy Procedure
CPT code 00921 designates anesthesia services for vasectomy procedures and is used when an anesthesia provider manages perioperative anesthetic care for excision of the vas deferens performed unilaterally or bilaterally. Nationally, this code is relevant to anesthesiology, urology, and outpatient procedural workflows because vasectomy remains a common sterilization procedure and anesthesia coding affects facility and clinician billing, resource allocation, and care coordination.
Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise review of the code’s clinical context, associated service setting, common related procedural codes, and applicable ICD-10 diagnoses that justify medical necessity for anesthesia during vasectomy. The publication also summarizes typical modifiers encountered with anesthesia services, payer coverage considerations, and how this code aligns with anesthesia billing for male genital procedures more broadly.
This summary equips clinicians, billing professionals, and policy analysts with a clear, national-level reference for CPT code 00921, including what the code covers and where it fits in the surgical and anesthesia care pathway. Data not available in the input will be noted where applicable within the full publication.
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Billing Code Overview
CPT code 00921 describes anesthesia services provided for a patient undergoing vasectomy. The procedure involves excision of the vas deferens, either unilaterally or bilaterally, to interrupt the duct that carries sperm from the testes toward the penis.
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Service type: Anesthesia for a minor outpatient surgical procedure on the male reproductive tract
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Typical site of service: Ambulatory surgery center or hospital outpatient setting; may also be performed in an office-based surgical setting depending on local practice patterns
National Reimbursement Benchmarks
Commercial rates for CPT 00921 cluster around BUCA’s average commercial rate of $85.60, with notable variance across named payers. Blue Cross Blue Shield shows a moderate interquartile spread of $37.75 (P75 $103.40 minus P25 $56.50), while Cigna’s spread is wider at $61.90 (P75 $139.00 minus P25 $73.10). Aetna exhibits a spread of $70.00 (P75 $120.30 minus P25 $50.00), and UnitedHealth Group is relatively tight with a spread of $30.90 (P75 $81.60 minus P25 $52.70). BUCA’s own interquartile range is $47.50 (P75 $108.50 minus P25 $57.50), sitting between the tighter and wider payers.
Payer maxima and minima further accentuate dispersion: Aetna reaches as high as $308.20 and as low as $31.00, while Cigna tops at $176.80 and UnitedHealth Group peaks at $122.70. Blue Cross Blue Shield’s maximum is $230.00. These differences highlight that contractual positions vary substantially by payer, with UnitedHealth Group the tightest IQR and Aetna the widest IQR among the listed commercial payers.