Summary & Overview
CPT 23184: Excision of Infected Bone, Proximal Humerus
CPT code 23184 denotes excision of infected bone in the proximal humerus, a targeted surgical debridement typically performed for osteomyelitis or an abscess of the upper arm. Nationally, this code captures an important orthopedic procedure with implications for inpatient and outpatient surgical resource use, antimicrobial management, and downstream reconstructive care. It is relevant for hospital systems, surgical practices, and payers monitoring utilization and appropriate surgical management of bone infections.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the clinical context for CPT code 23184, typical sites of service, and operational considerations. The publication summarizes common billing modifiers and coding relationships where available, outlines typical clinical indications, and provides benchmarking and policy considerations relevant to payers and providers. Where input data is missing, the report notes “Data not available in the input.”
This summary is intended to help revenue cycle teams, clinical coders, and policy analysts understand the clinical meaning of CPT code 23184, the settings in which it is billed, and the topics to review when evaluating utilization, coverage policies, and care pathways for proximal humeral osteomyelitis.
Billing Code Overview
CPT code 23184 describes a surgical procedure in which the provider excises a portion of infected bone from the proximal humerus, typically performed to treat osteomyelitis or a localized abscess. This operative debridement of infected bone is a targeted musculoskeletal surgical service.
Service type: Surgical debridement / orthopedic procedure
Typical site of service: Operating room or ambulatory surgical center, with possible inpatient admission depending on clinical severity and comorbidities.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting with localized pain, swelling, erythema, and possible drainage over the proximal humerus after weeks of persistent infection or failed conservative treatment. Imaging (plain radiographs and MRI or CT) demonstrates focal lytic change and sequestrum in the humeral head consistent with osteomyelitis or an abscess. The patient often has systemic signs such as fever or elevated inflammatory markers and may have comorbidities like diabetes or intravenous drug use that predispose to bone infection. The clinical workflow includes preoperative assessment (laboratory evaluation, imaging, and targeted cultures), perioperative antibiotics guided by infectious disease when available, operative debridement with excision of infected bone in the proximal humerus under anesthesia, collection of intraoperative cultures and pathology, wound management with irrigation and possible placement of drains or local antibiotic carriers, and postoperative infectious disease follow-up to direct long-term antimicrobial therapy and rehabilitation to restore shoulder function.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
LT | Left side | When the procedure is performed on the left proximal humerus |
RT | Right side | When the procedure is performed on the right proximal humerus |
50 | Bilateral procedure | When excision of infected bone is performed on both proximal humeri during the same operative session |
62 | Two surgeons | When two surgeons with distinct skill sets simultaneously perform portions of the procedure |
76 | Repeat procedure by same provider | When the same physician performs a repeated procedure later for the same patient (note: 76 was not in the provided list; not used) |
78 | Unplanned return to OR for related procedure during global period | For a return to the operating room for complications related to the original debridement |
79 | Unrelated procedure during postoperative period | For an unrelated procedure during the global period (note: 79 was not in the provided list; not used) |
22 | Increased procedural services | When work, time, or complexity substantially exceeds typical service for the procedure |
52 | Reduced services | When the procedure is partially reduced or not completed as originally planned |
53 | Discontinued procedure | When the procedure is started but discontinued due to extenuating circumstances or patient condition |
76 | Repeat procedure by same physician | Data not available in the input. |
26 | Professional component | When only the professional component is billed separately from technical component (rare for surgical CPT) |
TC | Technical component | When only the technical component is billable (rare for surgical CPT) |
23 | Unusual anesthesia | When general anesthesia is not used and unusual circumstance necessitates this modifier (e.g., local without sedation in a patient unable to tolerate general) |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207LH0000X | Orthopedic Surgery | Primary specialty performing debridement and excision of proximal humeral bone infection |
207K00000X | General Surgery | May perform debridement when trauma or general surgical access is required |
207RH0000X | Plastic and Reconstructive Surgery | May be involved for complex soft tissue coverage after debridement |
186E00000X | Infectious Disease | Provides perioperative antimicrobial management and follow-up |
208000000X | Physical Medicine & Rehabilitation | Manages postoperative functional rehabilitation |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
M86.10 | Osteomyelitis of unspecified site, acute | Common diagnosis when acute infection involves the proximal humerus requiring surgical debridement |
M86.11 | Chronic osteomyelitis with draining sinus, humerus | Represents chronic bone infection of the humerus often necessitating excision of infected bone |
M86.60 | unspecified osteomyelitis, shoulder region, acute | Used when osteomyelitis localized to the shoulder/proximal humerus is the indication for surgery |
M86.61 | Chronic osteomyelitis, shoulder region, with draining sinus | Chronic shoulder-region infection that commonly requires operative debridement and excision of sequestra |
M00.20 | Staphylococcal infection of joint, shoulder, unspecified | Bacterial pathogens such as Staphylococcus can seed the proximal humerus and necessitate surgical intervention |
T81.4XXA | Infection following a procedure, initial encounter | Applied when the infected bone is a postoperative complication requiring excision |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
11042 | Debridement, subcutaneous tissue (eg, debridement of open wound) | May be performed for associated soft-tissue infection and wound bed preparation adjacent to the proximal humerus debridement |
11044 | Debridement, muscle and/or fascia, with skin grafting if performed | Used when deeper soft-tissue debridement beyond subcutaneous tissue is required concurrent with bone excision |
20680 | Removal of deep implanted foreign body, partially or totally; complicated | May be used if infected hardware in the proximal humerus must be removed during the same operative session |
23130 | Excision, humeral head and neck (including arthroplasty) | Performed when more extensive resection of the proximal humerus or joint arthroplasty is required beyond focal osteomyelitic excision |
11043 | Debridement, muscle and/or fascia, including bone debridement | Used when combined debridement includes both soft tissue and infected bone and is documented accordingly |