CPT 28052 Metatarsophalangeal Biopsy Reimbursement | OpenPayer

Summary & Overview

CPT 28052: Metatarsophalangeal Joint Soft Tissue Biopsy

CPT code 28052 denotes a surgical biopsy of the metatarsophalangeal joint, performed to obtain soft tissue for diagnostic evaluation. Nationally, this code is relevant for orthopedic surgeons, podiatrists, and surgical teams managing toe and forefoot pathology where tissue diagnosis guides treatment decisions. Accurate coding ensures proper classification of operative services and supports patient records for post-procedure management.

Key payers in typical analyses include Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical intent of the code, typical sites of service, and the common context in which the procedure is performed. The publication outlines benchmarking considerations, billing and documentation implications, and clinical context to help payers and providers align on coding expectations.

This summary provides an executive orientation to CPT code 28052: what the code represents, why it matters in surgical and diagnostic workflows, and what topics are covered in the full publication, including national benchmarking where available, relevant policy updates, and practical clinical context for use of the code.

AetnaBlue Cross Blue ShieldCignaUnitedHealthcareMedicareCPT 28052metatarsophalangeal biopsysurgical biopsyorthopedicspodiatryambulatory surgeryoperative proceduresoft tissue biopsy

Billing Code Overview

CPT code 28052 describes a surgical procedure in which an incision is made to open the metatarsophalangeal joint (the joint between the foot and toe) to obtain a soft tissue biopsy. This is a surgical biopsy of the metatarsophalangeal joint intended to collect tissue for diagnostic evaluation.

Service Type

Surgical biopsy / operative procedure

Typical Site of Service

Hospital operating room or ambulatory surgery center; may also be performed in an outpatient procedural suite depending on clinical setting and facility capabilities.

Clinical & Coding Specifications

Clinical Context

A 54-year-old patient presents to a podiatry clinic with a persistent, painful swelling at the dorsal aspect of the first metatarsophalangeal joint. Conservative care including orthotics and NSAIDs over 6 weeks failed to relieve symptoms. On exam there is localized erythema, focal tenderness, and a palpable soft-tissue mass at the joint. Imaging (weight-bearing foot radiographs and ultrasound) suggests a soft-tissue lesion adjacent to the metatarsophalangeal joint suspicious for synovial proliferation or neoplasm. The provider schedules an outpatient operative procedure to perform an open biopsy of the metatarsophalangeal joint soft tissue.

Typical clinical workflow:

Preoperative evaluation in clinic with informed consent, medication reconciliation, and review of imaging.
Day-of-service verification, time-out, and local or regional anesthesia with sedation per protocol.
Surgical procedure performed in an ambulatory surgery center or hospital outpatient department: incision over the metatarsophalangeal joint, exposure of the lesion, excisional or incisional biopsy of soft tissue, hemostasis, and layered closure.
Specimen sent to pathology with appropriate labeling and documentation of site.
Postoperative recovery and discharge with wound care instructions and follow-up for pathology review and further definitive management as indicated.

Coding Specifications

Modifier

CPT 28104: Excision of Bone Cyst or Benign Tumor, Tarsal/Metatarsal

CPT-28045-FOOT-TOE-SOFT-TISSUE-MASS-EXCISION

CPT 28045: Excision of Foot/Toe Soft-Tissue Mass

CPT-28113-FIFTH-METATARSAL-HEAD-EXCISION-NECROSIS-INFECTION

CPT 28113: Excision of Fifth Metatarsal Head for Necrosis or Infection

CPT-28060-PARTIAL-PLANTAR-FASCIECTOMY-PLANTAR-FASCIA-RELEASE

CPT 28060: Partial Plantar Fasciectomy for Plantar Fascia Decompression

CPT-28126-PARTIAL-TOE-BONE-RESECTION-INFECTED-TOE

CPT 28126: Partial Resection of Infected Toe Bone

CPT-28108-FOOT-PHALANGEAL-BONE-LESION-EXCISION

CPT 28108: Excision of Bone Cyst or Benign Tumor, Foot Phalanges

CPT-28106-TARSAL-METATARSAL-BONE-CYST-EXCISION-AUTOGRAFT

CPT 28106: Tarsal or Metatarsal Bone Cyst Excision with Autograft

CPT-28110-FIFTH-METATARSAL-BONY-LESION-EXCISION

CPT 28110: Excision of Bony Lesion, Head of Fifth Metatarsal

CPT-28118-CALCANEUS-EXCISION-HEEL-BONE-RESECTION

CPT 28118: Excision of Calcaneus for Infection or Necrosis

CPT-28090-FOOT-TENDON-LESION-EXCISION-SYNOVECTOMY

CPT 28090: Excision of Foot Tendon Lesion with Synovectomy

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Taxonomy Code	Specialty	Notes
207P00000X	Podiatry	Podiatrists commonly perform foot and toe soft-tissue procedures including MTP joint biopsies.
207L00000X	Orthopedic Surgery	Orthopedic foot and ankle surgeons perform diagnostic and therapeutic procedures around the MTP joint.
2080P0210X	General Surgery (Podiatric emphasis)	Some general surgeons with foot focus or surgical podiatrists perform soft tissue biopsies of the toe/foot.
208D00000X	Dermatology	Dermatologists may perform superficial soft-tissue biopsies involving periarticular skin or subcutaneous lesions near MTP joints.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`M20.4`	Hallux valgus (acquired)	Deformity of the first MTP joint that can produce painful soft-tissue changes and may require biopsy if atypical mass is present.
`M77.1`	Sesamoiditis	Inflammation around the first MTP joint region; biopsy may be indicated if a localized lesion is suspicious for other pathology.
`M25.57`	Pain in ankle and joints of foot	Symptom code often used when pain localized to the MTP joint prompts diagnostic biopsy.
`M79.60`	Pain in unspecified limb	Used when specific foot pain is documented and further tissue diagnosis is pursued.
`M71.8`	Other bursitis	Periarticular bursae at the MTP joint can present as masses requiring biopsy to exclude neoplasm or infection.
`L92.8`	Other granulomatous disorders of skin and subcutaneous tissue	Granulomatous lesions around the MTP joint may warrant soft-tissue biopsy for diagnosis.
`C49.A1`	Malignant neoplasm of skin of unspecified foot, except ankle	When concern exists for cutaneous or subcutaneous malignancy near the MTP joint, biopsy is indicated.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`28052`	Incision of metatarsophalangeal joint, biopsy of soft tissue	Primary procedure: open biopsy at MTP joint for tissue diagnosis.
`11000`	Debridement of extensive eczematous or infected tissue (first 20 sq cm or less)	May be billed if additional skin debridement around the wound is medically necessary at the time of biopsy.
`12002`	Simple repair of superficial wounds of scalp, neck, axillae, external genitalia, trunk and/or extremities; 2.6 cm to 7.5 cm	May be used for closure of the surgical incision when a simple layered repair is performed.
`10120`	Incision and removal of foreign body, subcutaneous tissues; simple	May be used if a discrete foreign body is removed in conjunction with the biopsy.
`26010`	Excision, tumor, benign lesion of tendon sheath (e.g., hand or foot); limited	May be relevant when excision of a focal benign soft-tissue mass adjacent to the MTP joint is performed rather than only biopsy.
`88304`	Surgical pathology, gross and microscopic examination	Billed by pathology for processing and microscopic evaluation of biopsy specimen; essential to the diagnostic workflow.

`26`	Professional component	Use when billing only the physician's professional interpretation or service component if separated from facility billing.
`50`	Bilateral procedure	Use when the same procedure is performed on both feet or bilateral metatarsophalangeal joints during the same operative session.
`52`	Reduced services	Use when the procedure is partially reduced or not completed as originally planned.
`53`	Discontinued procedure	Use when the procedure is started but terminated due to extenuating circumstances.
`59`	Distinct procedural service	Use to indicate a separate and distinct procedure when another service is billed on the same day and not incidental.
`62`	Two surgeons	Use when two surgeons work together as primary surgeons performing distinct portions of the procedure.
`66`	Surgical team	Use when a team approach is employed for complex procedures requiring multiple surgeons.
`73`	Discontinued outpatient hospital/ambulatory surgery center procedure prior to anesthesia	Use when the outpatient procedure is cancelled after patient preparation but before anesthesia administration.
`78`	Unplanned return to the operating/procedure room by the same physician following initial procedure for a related procedure during the postoperative period	Use for return to OR for complications related to the biopsy (e.g., hemorrhage requiring reoperation).
`79`	-- Not available in provided list --	Data not available in the input.
`AS`	Ambulatory surgery center facility service	Use to indicate services provided in an ambulatory surgery center when billing facility charges.
`LT`	Left side	Use to designate the left foot when laterality is required.
`RT`	Right side	Use to designate the right foot when laterality is required.

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