Summary & Overview
CPT 01392: Anesthesia for Knee Area Surgery
CPT code 01392 represents anesthesia services provided for knee area surgery, a critical component in orthopedic and surgical care. This code is widely recognized across the United States and is essential for accurate billing and reimbursement in hospital settings. The analysis includes coverage details from major national payers such as Aetna, Blue Cross Blue Shield, Cigna Health, and UnitedHealthcare, offering a comprehensive overview of payer policies and billing practices.
Readers will gain insight into the clinical context of knee area anesthesia, typical sites of service, and relevant coding benchmarks. The publication also highlights common modifiers used in conjunction with 01392, associated provider taxonomies, and ICD-10 diagnoses frequently linked to knee surgeries. Additionally, related CPT codes are discussed to provide a broader understanding of anesthesia coding for knee procedures. This summary serves as a resource for healthcare professionals, billing specialists, and policy analysts seeking up-to-date information on anesthesia coding standards, payer coverage, and clinical documentation requirements for knee area surgery.
CPT Code Overview
CPT code 01392 is used to report anesthesia services for knee area surgery. This code falls under the anesthesiology service type and is typically performed in an inpatient hospital setting (Place of Service 21). The procedure involves the administration and management of anesthesia to ensure patient comfort and safety during surgical interventions in the knee area.
Clinical & Coding Specifications
Clinical Context
A typical patient scenario involves an adult admitted to an inpatient hospital for knee surgery, such as a total knee replacement or repair of knee structures. The patient may have a diagnosis of unilateral primary osteoarthritis or may be presenting for revision of a previously implanted artificial knee joint. The anesthesiology team provides anesthesia services for the surgical procedure, ensuring patient comfort and safety throughout the operation. The clinical workflow includes preoperative assessment, administration of anesthesia, intraoperative monitoring, and postoperative care.
Coding Specifications
| Modifier Code | Description | When Used |
|---|---|---|
QS | Monitored anesthesia care service | Used when anesthesia is provided as monitored anesthesia care rather than general anesthesia. |
QX | CRNA service with medical direction by a physician | Used when a Certified Registered Nurse Anesthetist (CRNA) provides anesthesia services under the medical direction of a physician. |
Associated Provider Taxonomies:
207L00000X- Anesthesiology: Physicians specializing in anesthesia care.207LA0401X- Pain Medicine (Anesthesiology): Physicians specializing in pain management within anesthesiology.367500000X- Certified Registered Nurse Anesthetist: CRNAs providing anesthesia services.
Related Diagnoses
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M17.10- Unilateral primary osteoarthritis, unspecified knee- Indicates osteoarthritis affecting one knee, relevant for patients undergoing knee surgery due to degenerative changes.
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M17.11- Unilateral primary osteoarthritis, right knee- Specifies osteoarthritis in the right knee, often leading to surgical intervention such as knee replacement.
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M17.12- Unilateral primary osteoarthritis, left knee- Specifies osteoarthritis in the left knee, commonly resulting in surgical procedures requiring anesthesia.
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M17.5- Other unilateral secondary osteoarthritis of knee- Refers to secondary osteoarthritis in one knee, which may necessitate surgical treatment and anesthesia services.
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Z96.651- Presence of right artificial knee joint- Indicates a patient with a right knee prosthesis, relevant for revision or related surgical procedures.
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Z96.652- Presence of left artificial knee joint- Indicates a patient with a left knee prosthesis, pertinent for surgeries involving the artificial joint.
Related CPT Codes
| CPT Code | Description | Clinical Relationship |
|---|---|---|
01360 | ANESTH, KNEE AREA SURGERY | Similar to 01392, used for anesthesia during knee area surgeries; may be used as an alternative depending on procedure specifics. |
01380 | ANESTH, KNEE JOINT PROCEDURE | Used for anesthesia during procedures specifically involving the knee joint; often related to joint repair or replacement. |
01382 | ANESTH, KNEE ARTHROSCOPY | Used for anesthesia during arthroscopic procedures of the knee; commonly used when minimally invasive techniques are employed. |
01390 | ANESTH, KNEE AREA PROCEDURE | Used for anesthesia during other knee area procedures; may be used together or as alternatives based on surgical approach. |
These codes are related to 01392 and may be selected based on the specific surgical procedure performed on the knee. Some may be used together in complex cases, while others serve as alternatives for different types of knee surgeries.
National Reimbursement Benchmarks
National mean rates for CPT code 01392 show that BUCA (average commercial) is at $155.20, while Medicare rates are not available in the input. Among the commercial payers, Aetna and Cigna have the highest mean rates, at $259.91 and $248.89 respectively, while UnitedHealth Group is notably lower at $65.46.
Rate dispersion, measured by the difference between the 75th and 25th percentiles, varies significantly across payers. Aetna exhibits the widest spread ($316.26), indicating substantial variability in contracted rates. Cigna also shows a wide range ($258.00). In contrast, UnitedHealth Group has the tightest range ($24.83), suggesting more consistent rates nationally. Blue Cross Blue Shield's range is moderate at $99.60, and BUCA's is $152.67.
The table and chart below present the full breakdown of national benchmarks for each payer.
State Benchmarks
State: AK1 / 50
Alaska Benchmarks
Alaska exhibits a wide rate spread for CPT code 01392, particularly among Blue Cross Blue Shield, where the difference between the 75th and 25th percentiles is $72.70 ($298.50 minus $225.80). Cigna and UnitedHealth Group show much narrower spreads, with only $8.00 and $3.00 respectively, indicating less variability in their reimbursement rates. Compared to national averages, Alaska's mean rates for most payers are higher, except for Cigna and UnitedHealth Group, which are notably lower than their national benchmarks.
The table and chart below present the full breakdown of mean rates and percentile distributions for each payer in Alaska, highlighting the significant differences in reimbursement levels across the market.
Key Insights for Alaska
- Blue Cross Blue Shield is the highest paying payer for CPT 01392 in Alaska, with a mean rate of $267.05.
- UnitedHealth Group offers the lowest mean rate at $74.78, significantly below both the state and national averages.
- Cigna's mean rate in Alaska ($89.33) is notably lower than its national mean ($248.89), indicating a substantial deviation.
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