T84.213D Breakdown (mechanical) of internal fixation device of bones of foot and toes, subsequent encounter

ICD-10-CM T84.213D: Breakdown of internal fixation device of bones of foot and toes, subsequent encounter

ICD-10-CM code T84.213D identifies the mechanical breakdown of an internal fixation device within the bones of the foot and toes during a subsequent encounter. This diagnosis is classified as an injury or poisoning concept. It is distinct from initial encounters and sequela conditions for the same orthopedic hardware complication. 1 4

Plain-language overview

Internal fixation is a surgical method that reconnects broken or cracked bones and fixes them in place using orthopedic hardware positioned internally beneath the skin. 5

Surgeons performing internal fixation may use wires, screws, metal plates, nails, rods, or pins as orthopedic fixation devices to hold foot and ankle bones together. 5

What this code represents

The official label for T84.213D is the breakdown of internal fixation device of bones of foot and toes, subsequent encounter, and its semantic type is injury or poisoning. 1

Code T84.213D is a child concept of T84.213, which represents the general breakdown of internal fixation devices in foot and toe bones without specifying the encounter type. 1

Coding details

T84.213D is distinct from T84.213A, which represents the initial encounter for the same mechanical breakdown of foot and toe fixation devices, and T84.213S, which denotes a sequela. 4 6

The seventh character D in this coding context specifies that the encounter is a subsequent one, differentiating it from initial encounters and late effects identified by other characters. 4 6

Documentation considerations

Clinical literature indicates that foot and ankle surgery applications of orthopedic devices require meticulous selection of biomaterials, with particular emphasis on materials possessing superior mechanical performance. 2

What the sources add

While terminology records define the code hierarchy, clinical literature notes that metallic biomaterials are the predominant fixation systems used in foot and ankle surgical reconstructions. 1 2

A comparison of sources shows that terminology records establish the official code definition, while clinical reviews explain that foot and ankle fixation hardware faces unique biomechanical demands. 1 2

Sources

1. ICD-10-CM T84.213D terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Foot and ankle biomaterials: a comprehensive review of current applications, challenges, and future directions — pmc.ncbi.nlm.nih.gov; accessed 2026-07-27.
3. ICD-10-CM/PCS MS-DRGv33 Definitions Manual — cms.gov; accessed 2026-07-27.
4. ICD-10-CM 2024 | T84 - Complications of internal orthopedic prosthetic devices, implants and grafts — unboundmedicine.com; accessed 2026-07-27.
5. Internal and External Fixation of Foot and Ankle Fractures | Dr. Paul Kim, Orthopedic Surgeon, Foot and Ankle Specialist, Los Gatos, Burlingame, Martinez, CA — orthokim.com; accessed 2026-07-27.
6. Medical Billing Code Search — app.drchrono.com; accessed 2026-07-27.