Summary & Overview
CPT 23921: Shoulder Disarticulation Stump Skin and Muscle Remodeling
CPT code 23921 captures surgical remodeling of the skin and muscle of an upper-extremity stump following shoulder disarticulation, typically performed to correct an improper initial closure or to address pain from wound contracture. The code is relevant for surgical practices, hospital billing departments, and payers because it represents a specialized reconstructive procedure tied to complex amputation care and potential postoperative complications. Nationally, accurate use of this code affects clinical documentation, claims adjudication, and resource planning for limb-loss services.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise review of the code’s clinical context, typical sites of service, and the operational implications for billing and coding workflows. The publication also summarizes common modifiers associated with this service (input provided) and notes where input data are not available. The coverage includes benchmarks and policy-relevant considerations for payers and providers, guidance on documentation needs inherent to reconstructive stump procedures, and pointers to related coding areas for amputation and reconstructive surgery. Data not provided in the input are clearly identified as unavailable.
Billing Code Overview
CPT code 23921 describes remodeling of the skin and muscle of an upper-extremity stump after disarticulation through the shoulder. The procedure is performed to correct an improper initial closure or to relieve pain related to contracture in the wound.
Service type: Surgical revision of upper-extremity amputation stump (shoulder disarticulation stump remodeling)
Typical site of service: Operating room or outpatient surgical center
Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Clinical & Coding Specifications
Clinical Context
A 52-year-old male veteran presents to an orthopedic surgical clinic for evaluation of a symptomatic shoulder stump following a prior transhumeral disarticulation through the shoulder girdle performed after a traumatic upper-extremity amputation. The patient reports persistent wound contracture, pain with attempted prosthetic fitting, and areas of poorly healed tissue from the initial closure. After clinical assessment, imaging, and wound evaluation, the reconstructive surgeon schedules a stump revision and soft-tissue remodeling procedure to improve stump contour, relieve contracture, and create a stable, pain-free residual limb suitable for prosthetic fitting. The perioperative workflow includes preoperative anesthesia evaluation, consent with discussion of risks and benefits, intraoperative assessment and excision of scarred or infected tissue, muscle and skin reorientation and closure, and postoperative wound care with outpatient follow-up for prosthetic team coordination and physical therapy.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when the work, time, or technical difficulty is substantially greater than typical for 23921. |
23 |