CPT 01744: Anesthesia for Humerus Nonunion or Malunion Repair
CPT code 01744 documents anesthesia services for open or arthroscopic repair of nonunion or malunion of the humerus. This code is used when an anesthesia professional manages perioperative care for patients undergoing surgical correction of a humeral fracture that has failed to heal properly or has healed in malalignment. Nationally, accurate use of this code supports consistent payment for anesthesia time and complexity associated with upper-arm reconstructive procedures and helps align clinical documentation with billing.
Key payers examined include Aetna, Blue Cross Blue Shield, Cigna Health, United Healthcare, and Medicare. Readers will find a concise overview of how the code maps to orthopedic surgical services, the typical clinical setting for its use, and the payer landscape relevant to anesthesia billing for humeral repair. The publication also summarizes common clinical scenarios tied to the code and cross-references commonly billed orthopedic procedure codes to aid coders and billing managers in claim assembly.
This analysis supplies national-level context rather than regional policy. It highlights coding intent, expected sites of service, and payer coverage scope so that billing teams, anesthesia providers, and revenue cycle professionals can confirm code applicability for humerus nonunion or malunion repair cases. Data not available in the input is noted where applicable.
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Billing Code Overview
CPT code 01744 describes anesthesia services provided for a patient undergoing open or arthroscopic repair of nonunion or malunion of the humerus (the long bone of the upper arm). The code captures the anesthetic management tied specifically to surgical correction of humeral nonunion or malunion.
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Service type: Anesthesia for orthopedic surgical repair of the humerus (open or arthroscopic)
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Typical site of service: Hospital operating room or ambulatory surgical center
Clinical & Coding Specifications
Clinical Context
A 52-year-old male presents with persistent shoulder pain and impaired function six months after a prior humeral fracture that healed with malalignment. Imaging confirms malunion of the proximal humerus with limited range of motion and rotator cuff irritation. The orthopedic surgeon schedules open corrective osteotomy and fixation (or arthroscopic-assisted release and fixation) to restore alignment and shoulder mechanics. An anesthesiology team evaluates the patient preoperatively, documents airway and medical comorbidities, and plans anesthesia technique — commonly general endotracheal anesthesia with regional blockade (interscalene nerve block) for intraoperative analgesia and postoperative pain control. In the operating room the anesthesia provider performs induction, airway management, maintenance, intraoperative monitoring, and emergence; postoperative transfer to PACU includes pain control handoff and documentation of block effectiveness. Typical perioperative considerations include blood loss management, positioning for upper extremity surgery, peripheral nerve block consent and documentation, and multimodal analgesia planning. Billing for anesthesia services for open or arthroscopic repair of humeral nonunion/malunion is reported with 01744 and may include applicable modifiers for unusual circumstances, bilateral procedures, or provider qualifications.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when anesthesia care is substantially greater than typical due to complexity or prolonged time related to humeral nonunion/malunion repair. |
23 | Unusual anesthesia | Use when procedure is performed under general anesthesia because it is ordinarily done with local/monitored anesthesia (rare for shoulder but applicable if unexpected general anesthesia required). |
50 | Bilateral procedure | Use when identical procedures are performed on both upper extremities (rare for unilateral humerus but available if bilateral repairs occur). |
52 | Reduced services | Use when the anesthesia service is partially reduced or not completed as originally planned. |
53 | Discontinued procedure | Use when anesthesia is provided but the surgical procedure is terminated before completion for patient safety. |
62 | Two surgeons | Use when two surgeons work together as primary surgeons and anesthesia documentation reflects shared operative complexity. |
78 | Return to OR for related procedure during global period | Use when patient returns to the operating room for a procedure related to the original humeral repair and anesthesia is required. |
AA | Anesthesia by physician | Use when an MD/DO anesthesiologist personally performs the anesthesia services. |
AD | Medical supervision by a physician; more than four concurrent anesthesia cases | Use when a physician supervises multiple concurrent CRNA cases as defined by payer rules. |
QK | Medical direction of two, three, or four CRNAs by an anesthesiologist | Use when the anesthesiologist directs multiple CRNAs during this case. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207L00000X | Anesthesiology | Physician specialty responsible for perioperative anesthesia care and management for humeral nonunion/malunion repair. |
207LA0401X | Pain Medicine (Anesthesiology) | Specialists providing perioperative regional block planning and complex pain management strategies. |
367500000X | Certified Registered Nurse Anesthetist | CRNAs who may deliver or assist in anesthesia services under appropriate supervision or direction. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
M17.10 | Unilateral primary osteoarthritis, unspecified knee | Represents degenerative joint disease of the knee; listed among provided diagnoses as a common orthopedic diagnosis requiring anesthesia services for joint procedures in the same clinical practice. |
M17.11 | Unilateral primary osteoarthritis, right knee | Side-specific knee osteoarthritis; relevant for scheduling and laterality documentation when billing anesthesia services. |
M17.12 | Unilateral primary osteoarthritis, left knee | Side-specific knee osteoarthritis; relevant for scheduling and laterality documentation when billing anesthesia services. |
M17.5 | Other unilateral secondary osteoarthritis of knee | Secondary osteoarthritis due to prior injury or other causes; illustrates related degenerative conditions treated surgically in orthopedic practices. |
Z96.651 | Presence of right artificial knee joint | Indicates prior right knee arthroplasty; important for preoperative assessment and anesthetic planning regarding prior implants. |
Z96.652 | Presence of left artificial knee joint | Indicates prior left knee arthroplasty; important for preoperative assessment and anesthetic planning regarding prior implants. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
27447 | Arthroplasty, knee, condyle and plateau; medial AND lateral compartments with or without patella resurfacing (total knee arthroplasty) | Listed as a related major orthopedic procedure; illustrates comparable anesthesia resource needs for major joint reconstruction though anatomically distinct from humeral repair. |
20610 | Arthrocentesis, aspiration and/or injection into a major joint or bursa | May be used preoperatively or postoperatively for diagnostic or therapeutic joint injections as part of perioperative pain management planning. |
29881 | Arthroscopy, knee, surgical; with meniscectomy (medial OR lateral, including any meniscal shaving) | Example of arthroscopic orthopedic procedure; included as related code representing arthroscopic technique comparable to arthroscopic-assisted humeral procedures. |
29888 | Arthroscopically aided anterior cruciate ligament repair/augmentation or reconstruction | Another related arthroscopic reconstructive procedure demonstrating similar perioperative anesthesia considerations for orthopedics. |