CPT 28825 Toe Amputation — Reimbursement & Policy | OpenPayer

Summary & Overview

CPT 28825: Toe Amputation at Interphalangeal Joint

CPT code 28825 denotes surgical amputation of a toe at an interphalangeal joint — a focused, lower-extremity procedure used when distal toe preservation is not feasible due to infection, ischemia, trauma, or uncontrolled pain. Nationally, this code represents a common operative option within podiatric and orthopedic services for limb- and digit-sparing strategies, and it has implications for surgical resource use, post-operative care, and functional outcomes.

Key payers referenced in the analysis 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 common settings in which 28825 is billed. The publication also outlines benchmarks and payment considerations used by major payers, common modifiers associated with billing this procedure, and related policy levers affecting coverage and authorization workflows.

This summary equips clinicians, billing professionals, and policy analysts with essential background on CPT code 28825, clarifies where the procedure is commonly performed, and highlights the administrative and clinical topics addressed in the full publication, including utilization patterns, reimbursement drivers, and documentation expectations.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 28825toe amputationinterphalangeal jointsurgical procedurepodiatryorthopedicsambulatory surgeryoperative codinglower extremity surgery

Billing Code Overview

CPT code 28825 describes the surgical amputation of a toe at an interphalangeal joint, the joint between the phalanges of a toe. The procedure involves removal of the distal portion of the toe through the joint, typically to treat severe infection, ischemia, gangrene, uncontrolled pain, or traumatic injury when preservation of more proximal tissue is not possible.

Service type: Surgical amputation of a toe at the interphalangeal joint
Typical site of service: Ambulatory surgery center or inpatient surgical suite, depending on clinical severity and patient comorbidities

Clinical & Coding Specifications

Clinical Context

A typical patient is an adult with a painful, nonviable toe distal to the interphalangeal joint due to severe infection (e.g., diabetic foot infection), chronic ischemia with gangrene, traumatic crush injury with irreparable damage, or refractory pain from degenerative joint disease. The patient presents to an ambulatory surgical center or hospital outpatient department for evaluation. Preoperative workflow includes history and physical, documentation of vascular status (pulses, capillary refill), assessment for infection (wound cultures, inflammatory markers), glycemic control review for diabetics, and informed consent discussing partial toe amputation at the interphalangeal joint.

Intraoperative workflow involves regional, local, or general anesthesia; sterile prep of the foot; excision of the toe at the interphalangeal joint with hemostasis; possible bone trimming and soft-tissue closure; and application of a sterile dressing or minor wound closure. Specimens may be sent for culture or pathology when infection or neoplasm is suspected. Postoperative workflow includes pain control, wound care instructions, activity restrictions, follow-up for dressing changes and suture removal, and coordination with podiatry, vascular surgery, or wound care services as indicated.

Coding Specifications

Modifier	Description	When to Use
`52`	Reduced services	Use when the amputation is partially reduced from the typical procedure (e.g., limited resection).

CPT 28810: Amputation of Single Metatarsal and Attached Toe

CPT-28800-MIDTARSAL-TRANSVERSE-TARSAL-AMPUTATION

CPT 28800: Midtarsal (Transverse Tarsal) Foot Amputation

CPT-28820-TOE-AMPUTATION-METATARSOPHALANGEAL-JOINT

CPT 28820: Amputation of Toe at Metatarsophalangeal Joint

CPT-28805-METATARSAL-LEVEL-PARTIAL-FOOT-AMPUTATION

CPT 28805: Metatarsal-Level Partial Foot Amputation

Taxonomy Code	Specialty	Notes
2080P0200X	Podiatry (Podiatric Medicine & Surgery)	Podiatrists commonly perform toe amputations at interphalangeal joints.
207L00000X	Orthopedic Surgery	Orthopedic foot and ankle surgeons perform toe amputations for trauma or severe infection.
208VP0000X	Vascular Surgery	Vascular surgeons may perform or assist when ischemia or revascularization is involved.
363L00000X	General Surgery	General surgeons in some settings perform minor amputations, especially in hospitals.
174500000X	Plastic Surgery	Plastic surgeons may be involved for complex soft-tissue management and reconstruction.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`E11.621`	Type 2 diabetes mellitus with foot ulcer	Diabetic foot ulcers can lead to infection and necrosis necessitating toe amputation at the interphalangeal joint.
`L03.115`	Cellulitis of right toe	Acute soft tissue infection that may progress to require partial toe amputation when unresponsive to therapy.
`L03.116`	Cellulitis of left toe	Same clinical relevance for the left side.
`I70.213`	Atherosclerosis of native arteries of right leg with ulceration	Peripheral arterial disease causing ischemia and tissue loss leading to amputation.
`S90.211A`	Contusion of right toe, initial encounter	Traumatic injury that may result in nonviable tissue requiring amputation.
`S98.011A`	Abrasion or traumatic amputation of toe(s), initial encounter	Trauma-related partial or complete amputation scenarios that may be managed with formal surgical amputation at an interphalangeal joint.
`M20.4`	Hallux valgus (acquired)	Severe deformity with recurrent ulceration or osteomyelitis may necessitate amputation of affected toe.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`11055`	Debridement of skin, partial-thickness wounds involving surface area up to 20 sq cm; first 20 sq cm or less	May be performed prior to or with toe amputation when extensive skin debridement is required for infection control.
`11720`	Debridement of nail(s) by partial or complete removal, for onychocryptosis or ingrown toenail (simple)	May be performed on the same toe in procedures addressing infected or ingrown nails that contribute to pathology.
`29105`	Application of short leg splint (calf to foot)	May be used postoperatively for immobilization following a toe amputation if indicated.
`20220`	Reconstruction, finger or toe; with microvascular anastomosis (replantation) — not typically for amputation but listed for complex reconstructive scenarios	May be related when revascularization or complex reconstruction is attempted instead of amputation.
`11043`	Debridement, subcutaneous tissue, muscle and bone as indicated; first 20 sq cm or less	Used when deeper debridement including bone trimming is necessary at the time of toe amputation.

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