Summary & Overview
CPT 28820: Amputation of Toe at Metatarsophalangeal Joint
CPT code 28820 represents the surgical amputation of a toe at the metatarsophalangeal joint, a procedure performed to remove a toe at the joint between the metatarsal and the proximal phalanx. This code is clinically important for podiatry, orthopedic, and general surgical practice and carries implications for surgical resource use, post-operative care, and billing for inpatient and outpatient settings nationally. Key payers in typical analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will learn the clinical scope tied to CPT code 28820, typical sites of service, and the payment and billing context relevant to major national payers. The publication outlines common modifier use and payer coverage patterns where available, summarizes clinical considerations that inform coding and claims submission, and highlights areas where policy updates or payer-specific rules may affect reimbursement and claims adjudication. Data not available in the input is noted where applicable; this summary focuses on the national context and operational implications for providers and billing teams handling procedures coded with CPT code 28820.
Billing Code Overview
CPT code 28820 describes the surgical amputation of a toe at the metatarsophalangeal joint, the joint between the metatarsal bone of the foot and the proximal phalanx of the toe. This procedure involves removal of the toe at the metatarsophalangeal articulation and includes the operative management required to achieve a functional and well-healed residual foot.
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Service type: Surgical amputation of toe at the metatarsophalangeal joint
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Typical site of service: Ambulatory surgery center or hospital operating room
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult presenting with a painful, nonviable, or functionally limiting toe (most commonly the great toe) due to severe infection, osteomyelitis, ischemia from peripheral arterial disease, or traumatic mangling. The patient often arrives after failing conservative care (antibiotics, debridement, offloading) and has preoperative evaluation including vascular assessment, glycemic control review for diabetics, and informed consent. The procedure 28820 (amputation of toe at the metatarsophalangeal joint) is performed in an ambulatory surgery center or hospital operating room under regional block, local anesthesia with sedation, or general anesthesia depending on comorbidities and extent of disease. Intraoperative steps include confirmation of level at the metatarsophalangeal joint, dissection to preserve soft tissue flaps for closure, hemostasis, and appropriate closure; specimens may be sent for culture and pathology when infection or malignancy is suspected. Postoperative workflow includes pain control, dressing and wound care instructions, vascular and wound follow-up, activity restrictions and footwear modification, and documentation of any complications or need for further amputation.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
50 | Bilateral procedure | When two toes (mirror sites) are amputated and payer requires bilateral modifier reporting |