T84.310 Breakdown (mechanical) of electronic bone stimulator

ICD-10-CM T84.310: Breakdown (mechanical) of electronic bone stimulator

ICD-10-CM code T84.310 identifies a mechanical breakdown of an electronic bone stimulator. This diagnosis code falls under complications of surgical and medical care, specifically involving internal orthopedic devices. Electronic bone growth stimulators are FDA-regulated devices that apply electrical or magnetic waveforms to augment bone healing. 3 1 2

Plain-language overview

ICD-10-CM code T84.310 denotes a mechanical breakdown of an electronic bone stimulator. This code is categorized under complications of surgical and medical care, specifically within the subcategory for mechanical complications of other bone devices, implants, and grafts. 3

What this code represents

The T84.310 code hierarchy progresses from complications of surgical and medical care, to complications of internal orthopedic prosthetic devices, and then to mechanical complications of other bone devices. The T84.310 code specifically narrows this classification to the breakdown of an electronic bone stimulator. 3

Coding details

The T84.310 diagnosis code possesses three billable variations utilizing seventh characters: T84.310A for initial encounter, T84.310D for subsequent encounter, and T84.310S for sequela. These specific character extensions are listed alongside the primary T84.310 code in the official index. 3

Documentation considerations

The supplied coding source lists T84.310A, T84.310D, and T84.310S as distinct codes corresponding to initial encounter, subsequent encounter, and sequela. The source text does not provide specific clinical documentation guidelines for selecting among these three seventh characters. 3

Clinical context

Electronic bone growth stimulators are devices that deliver electrical, magnetic, or mechanical waveforms to a fracture site to augment bone healing. As of 2018, nine FDA-approved electrical bone growth stimulators were commercially available for treating spinal fusion and fracture nonunion. 1 2

The FDA classifies electromagnetic field devices used in clinical bone healing as non-invasive bone growth stimulators. These devices utilize a generator and transducer to deliver waveforms to the fracture site, which contrasts with the internal orthopedic device focus of the T84.310 code. 2 3

What the sources add

The clinical literature sources describe the function and FDA classification of bone growth stimulators, while the coding source details the specific ICD-10-CM classification for device breakdown. Comparing these domains shows that clinical device descriptions do not specify the mechanical failure modes captured by T84.310. 1 2 3

The clinical sources establish that electronic bone stimulators exist and are regulated by the FDA for bone healing applications. The coding source establishes the administrative mechanism for recording a mechanical breakdown of such a device, but provides no clinical details on the failure itself. 1 2 3

Sources

1. Electronic Bone Growth Stimulators for Augmentation of Osteogenesis in In Vitro and In Vivo Models: A Narrative Review of Electrical Stimulation Mechanisms and Device Specifications — pmc.ncbi.nlm.nih.gov; accessed 2026-07-25.
2. The effects and mechanisms of electromagnetic fields on bone remodeling: From clinical to laboratory — pmc.ncbi.nlm.nih.gov; accessed 2026-07-25.
3. T84.310 - Breakdown (mechanical) of electronic bone stimulator | ICD-10-CM — unboundmedicine.com; accessed 2026-07-25.