CPT 01500: Anesthesia for Lower Leg (Below Knee) Procedures - OpenPayer

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Summary & Overview

CPT 01500: Anesthesia for Lower Leg (Below Knee) Procedures

CPT 01500 designates anesthesia services for procedures on the lower leg below the knee and is used to report perioperative anesthetic care when the surgical field is the lower leg. Nationally, this code captures a focused subset of anesthesiology activity linked to orthopedic and podiatric lower-extremity procedures, and it is relevant for hospitals, anesthesia groups, and payers monitoring appropriate anesthesia coding and site-of-service utilization.

Key payers covered in this publication include Aetna, Blue Cross Blue Shield, Cigna Health, and UnitedHealthcare. Readers will find a clear explanation of what 01500 represents, typical clinical contexts that generate use of the code, and how it coexists with related surgical procedures. The guidance outlines common modifiers associated with the service, typical provider taxonomies involved, and representative ICD-10 diagnoses that frequently accompany claims for below-knee procedures.

This summary prepares readers to review benchmarks and policy language relevant to anesthesia billing for lower-leg procedures, understand common documentation and coding pairings, and identify where additional payer-specific rules may apply. Data not available in the input for specific service-line metrics is noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareCPT 01500AnesthesiologyLower leg surgeryOutpatient hospitalAnesthesia codingKnee and leg proceduresClinical documentation

CPT Code Overview

CPT 01500 describes anesthesia services provided for procedures on the lower leg (below the knee). This code applies to anesthesiology care delivered to facilitate surgical or diagnostic procedures performed on the lower leg below the knee.

Service type: Anesthesiology

Typical site of service: Outpatient Hospital (POS 22)

Clinical & Coding Specifications

Clinical Context

A patient presents to an outpatient hospital surgical suite for a below-knee procedure performed with the patient under anesthesia. Typical indications include arthroscopic knee procedures or open procedures on the lower leg below the knee for conditions such as meniscal tear, chronic knee instability, or end-stage osteoarthritis. The perioperative workflow includes preoperative anesthesia evaluation, induction of anesthesia (general, regional, or monitored anesthesia care as documented), intraoperative anesthesia management while the orthopaedic surgeon performs the procedure on the lower leg or knee, emergence and immediate post-anesthesia care unit (PACU) monitoring, and discharge or admission based on clinical status. Documentation should clearly support that anesthesia services were provided specifically for procedures on the lower leg (below the knee) and reflect the level and type of anesthesia administered.

Coding Specifications

Modifiers
QS: Monitored anesthesia care service. Use when anesthesia services are reported as monitored anesthesia care per payer policy and documentation supports MAC rather than general anesthesia.
QX: CRNA service with medical direction by a physician. Use when a Certified Registered Nurse Anesthetist provides the anesthesia service under the medical direction of a physician and payer policy permits the QX modifier.
Provider Taxonomies

National Reimbursement Benchmarks

National mean commercial rates exceed Medicare on average; the BUCA (average commercial) mean of $206.09 sits well above the Medicare mean presented here as $0.00, reflecting that Medicare values are not provided in the input and are therefore represented as zero. Blue Cross Blue Shield and Cigna show the highest national mean rates among commercial payers at $427.01 and $453.18, respectively.

Rate dispersion (P75 minus P25) is widest for Cigna at 604.00 (692.00 − 88.00) and for Aetna at 455.00 (495.00 − 40.00), indicating large variability in allowed amounts. UnitedHealth Group (UHC) is the tightest with a dispersion of 24.67 (75.00 − 50.33), followed by BUCA with 272.25 (317.25 − 45.00). The table and chart below present the full payer breakdown.

State Benchmarks

State: AK1 / 50

Alaska Benchmarks

Alaska demonstrates a substantial rate spread for CPT code 01500, particularly among commercial payers. Blue Cross Blue Shield exhibits the widest spread, with a 75th percentile rate of $583.75 and a 25th percentile rate of $420.60, resulting in a difference of $163.15. In contrast, Aetna, Cigna, and UnitedHealth Group show minimal spreads, each with only a few dollars between their 25th and 75th percentiles, indicating more consistent reimbursement levels within those payers.

Compared to national averages, Alaska's mean rates for Blue Cross Blue Shield and Aetna are notably higher, while Cigna and UnitedHealth Group are below their respective national means. The table and chart below present the full breakdown of payer-specific reimbursement rates for CPT code 01500 in Alaska.

Key Insights for Alaska

Blue Cross Blue Shield is the highest paying payer for CPT 01500 in Alaska, with a mean rate of $509.50.
UnitedHealth Group offers the lowest mean rate at $74.78, significantly below both state and national averages.
The rate spread in Alaska is notably wider than national benchmarks, with BCBS rates far exceeding the national mean for this code.

Related Codes

01250

CPT 01250: Anesthesia for Shoulder and Axilla Procedures

01638

CPT 01638: Anesthesia for Shoulder and Axilla Procedures

01214

CPT 01214: Anesthesia for Total Hip Arthroplasty

01234

CPT 01234: Anesthesia for Radical Resection of Upper Femur

01380

CPT 01380: Anesthesia for Knee Arthroscopy Procedures

01260

CPT 01260: Anesthesia for Veins of Upper Leg Including Exploration

01270

CPT 01270: Anesthesia for Upper Leg Procedures (except knee)

01744

CPT 01744: Anesthesia for Total Knee Arthroplasty

01502

CPT 01502: Anesthesia for Lower Leg Procedures, Inpatient Hospital

01470

CPT 01470: Anesthesia for Lower Leg, Ankle, and Foot Procedures

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