Summary & Overview
CPT 28630: Closed Reduction of Metatarsophalangeal Joint Dislocation
CPT code 28630 covers the closed reduction of a metatarsophalangeal (MTP) joint dislocation performed without anesthesia. This procedural code captures the manual realignment of the joint where a metatarsal bone connects to a toe phalanx, a common acute intervention for traumatic toe or forefoot injuries. Nationally, correct coding of MTP joint reductions matters for accurate clinical documentation, care tracking in emergency and outpatient settings, and appropriate claims processing for episodic orthopedic care.
Key payers in scope for this code include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, typical sites of service, and the service type. The publication also provides benchmark-oriented coverage considerations, commonly used modifiers (listed separately), and coding relationships to support billing and administrative workflows. Additionally, the report highlights policy and payment considerations relevant to acute orthopedic procedures and emergency care reimbursement.
The content is intended for coding professionals, clinical administrators, and policy analysts seeking a clear operational and billing summary of CPT code 28630, enabling accurate claim preparation and alignment with payer requirements.
Billing Code Overview
CPT code 28630 describes the closed treatment of a metatarsophalangeal joint dislocation. The procedure involves manual realignment of a displaced joint where a metatarsal bone of the foot meets a phalanx of the toe. The description notes that the procedure is performed without anesthesia.
Service Type: Closed joint reduction of the metatarsophalangeal joint.
Typical Site of Service: Ambulatory setting such as an emergency department, urgent care clinic, or outpatient orthopedics clinic; may also be performed in a hospital outpatient department when clinically indicated.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult who presents to the emergency department or urgent care after an acute forefoot injury (for example, a ball-to-toe impact, fall, or athletic trauma) with localized deformity, pain, and inability to move the toe at the metatarsophalangeal (MTP) joint. The provider performs a focused history and physical exam, documents neurovascular status, and obtains weight-bearing and non-weight-bearing foot radiographs to evaluate for fracture versus isolated MTP dislocation. If radiographs show an isolated MTP dislocation without associated fracture or if fracture fragments are non-displaced and do not require open reduction, the clinician performs a closed reduction of the MTP joint. In many instances this procedure is performed in the procedure room or emergency department without general anesthesia — using local infiltration or no anesthesia per patient tolerance — consistent with coding for closed treatment without anesthesia. The workflow includes informed consent, analgesia or local anesthetic as appropriate, documented pre- and post-reduction neurovascular exam, post-reduction radiographs to confirm joint alignment, immobilization (buddy taping, splinting, or short leg cast), and discharge instructions with follow-up to an orthopedic or podiatric clinic for reassessment and possible formal immobilization or physical therapy.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
23 | Unusual anesthesia | Use when unusual circumstances require general anesthesia for a procedure that ordinarily is done without it (not typical for ). |