CPT 23333 Reimbursement & Policy Benchmarks | OpenPayer

Summary & Overview

CPT 23333: Removal of Foreign Body from Shoulder Subfascial or Intramuscular Tissue

CPT code 23333 designates the surgical removal of a foreign body from the shoulder’s subfascial or intramuscular tissue. This procedure-level code captures interventions to extract nonnative material embedded beneath the fascial plane or within shoulder musculature, a clinically important service for preventing infection, persistent pain, and impaired function. Nationally, accurate coding for such procedures affects provider reimbursement, quality measurement, and claims adjudication for shoulder surgery.

Key payers in scope include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of coding intent, typical sites of service (ambulatory surgical centers and hospital operating rooms), and clinical context for when the code applies. The analysis includes benchmarking and policy implications where available, as well as operational considerations for documentation and claim submission. Data not available in the input will be noted where applicable.

This publication provides clinicians, coding professionals, and policy analysts with clear guidance on the purpose of CPT code 23333, what clinical scenarios it represents, and where it fits in surgical service lines and billing workflows.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare23333CPTshoulder surgeryforeign body removalambulatory surgeryoperative proceduremusculoskeletalsurgical coding

Billing Code Overview

CPT code 23333 describes the removal of a foreign body located in the shoulder's subfascial or intramuscular tissue. This procedure involves the provider identifying and extracting nonnative material that lies beneath the fascia or within muscle tissue of the shoulder.

Service type: Surgical procedure for foreign body removal from shoulder soft tissues
Typical site of service: Ambulatory surgical center or hospital operating room

Clinical & Coding Specifications

Clinical Context

A 34-year-old construction worker presents to the emergency department after falling onto his left shoulder on a worksite. He reports localized pain, swelling, and a visible puncture wound after landing on a metal rod. Plain radiographs and ultrasound identify a radiopaque foreign body lodged in the subfascial/muscular layer of the deltoid region without involvement of the joint space. The orthopaedic surgeon evaluates the patient, documents the location and depth of the foreign body, obtains informed consent, and schedules a surgical removal under regional block or general anesthesia in an operating room or ambulatory surgery center. Preoperative steps include assessment for tetanus status, perioperative antibiotic planning if contaminated, and neurovascular exam documentation. Intraoperative steps include localization (palpation and fluoroscopy as needed), incision, blunt dissection to the subfascial/intramuscular plane, removal of the foreign body, irrigation, hemostasis, layered closure, and documentation of retrieved material. Postoperative workflow includes monitoring in PACU, wound care instructions, and follow-up for wound check and range-of-motion assessment. Billing uses 23333 for removal of a foreign body from the shoulder’s subfascial or intramuscular tissue, with modifier appended as clinically appropriate and an ICD-10 code indicating foreign body injury or contamination for claim submission.

Coding Specifications

Modifier	Description	When to Use
`22`

CPT 23350: Shoulder Arthrography Contrast Injection

CPT-23335-SHOULDER-PROSTHESIS-REMOVAL-HUMERAL-GLENOID

CPT 23335: Removal of Shoulder Prosthesis, Humeral and Glenoid

CPT-23334-SHOULDER-PROSTHESIS-REMOVAL-HUMERAL-GLENOID

CPT 23334: Removal of Shoulder Prosthesis, Humeral or Glenoid

CPT-23330-SHOULDER-SUBCUTANEOUS-FOREIGN-BODY-REMOVAL

CPT 23330: Removal of Subcutaneous Foreign Body, Shoulder

Taxonomy Code	Specialty	Notes
207L00000X	Orthopaedic Surgery	Most common specialty performing shoulder foreign body removal; includes trauma and upper-extremity surgeons.
208100000X	General Surgery	May perform removal in settings without orthopaedic availability, especially for soft-tissue foreign bodies.
363LP0808X	Emergency Medicine	May perform bedside removal or initial management and triage to OR; documents urgency.
208000000X	Family Medicine	May manage initial presentation in urgent care and refer for operative removal.
207X00000X	Hospitalist/Medicine (consults)	May assist with perioperative medical optimization and clearance.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S42.92XA`	Unspecified fracture of shoulder girdle, initial encounter	Shoulder trauma often coexists with penetrating injuries and may be assessed concurrently with foreign body removal.
`T15.18XA`	Foreign body in other specified part of upper limb, initial encounter	Directly indicates presence of a foreign body in the upper extremity/shoulder region and supports medical necessity for `23333`.
`S40.013A`	Contusion of right shoulder, initial encounter	Soft-tissue injury commonly associated with penetrating trauma and may accompany a foreign body.
`S40.012A`	Contusion of left shoulder, initial encounter	As above for the left side; laterality coding required when applicable.
`T81.82XA`	Retained foreign body postprocedure, initial encounter	Relevant when a previously retained surgical item or post-procedural foreign material in the shoulder requires removal.
`L02.217`	Cutaneous abscess of right upper limb	Infected foreign bodies may present with abscess requiring removal and drainage.
`L03.116`	Cellulitis of right shoulder	Soft-tissue infection associated with contaminated foreign bodies indicating need for removal and debridement.
`W21.09XA`	Struck by other object, initial encounter	Mechanism-of-injury code that may accompany trauma causing foreign body penetration of the shoulder.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`23320`	Excision, tumor, deep soft tissue of shoulder area (e.g., subfascial)	Performed when a soft-tissue mass or non-foreign body lesion requires excision rather than foreign-body removal; may be used if pathology is suspected.
`20680`	Removal of deep foreign body, soft tissues of upper extremity, with or without imaging guidance	Alternative code for deep foreign body removal in the upper extremity; selection depends on payer guidance and anatomical specificity.
`11042`	Debridement; subcutaneous tissue (includes initial debridement of contaminated wounds)	May be reported when extensive debridement of contaminated tissue is required in association with foreign body removal.
`76000`	Fluoroscopy (unlisted number for basic fluoroscopic guidance)	Imaging guidance during localization and removal; some payers require fluoroscopy reporting as an ancillary service.
`99024`	Postoperative follow-up visit, postoperative global period	Used for routine postoperative follow-up within the global period after the surgical procedure when billing separate from global package is allowed.

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