S24.109D Unspecified injury at unspecified level of thoracic spinal cord, subsequent encounter

ICD-10-CM S24.109D: Unspecified injury at unspecified level of thoracic spinal cord, subsequent encounter

ICD-10-CM code S24.109D designates an unspecified injury at an unspecified level of the thoracic spinal cord for a subsequent encounter. The terminology record classifies this active diagnosis concept under the broader parent code S24.109 and assigns it the semantic type of Injury or Poisoning. 1

Plain-language overview

Code S24.109D serves as an active diagnostic label for an unspecified injury at an unspecified level of the thoracic spinal cord during a subsequent encounter, providing a standardized terminology entry within the ICD-10-CM version 2026. 1

What this code represents

The terminology record assigns S24.109D the preferred name of Unspecified injury at unspecified level of thoracic spinal cord, subsequent encounter, establishing it as a specific diagnostic concept within the ICD-10-CM version 2026. 1

This code represents a concept classified under the semantic type of Injury or Poisoning, and it exists as a narrower concept beneath the parent code S24.109 for unspecified thoracic spinal cord injury. 1

Clinical context

Acute spinal cord injury can induce spinal shock, defined as a sudden, temporary loss or impairment of spinal cord function below the injury level affecting motor, sensory, reflex, and autonomic neural systems. 2

Severe spinal cord injury leading to spinal shock is primarily caused by a direct insult from high-impact trauma or a fall, and the prognosis depends on comorbidities, injury level, and type. 2

Documentation considerations

The official terminology record publishes the abbreviation unsp injury at unsp level of thoracic spinal cord, subs to correspond with the full preferred name for code S24.109D. 1

Coverage and utilization context

A Medicare billing and coding article for somatosensory testing lists S24.109D alongside S24.109S, indicating the code's appearance in payer documentation. 3

What the sources add

While the terminology record provides the exact code definition and hierarchical status, the Medicare article demonstrates its operational appearance in payer billing contexts, and the clinical text outlines the broader medical implications of spinal cord injuries. 1 2 3

Comparing the sources reveals that the terminology record strictly defines the code's identity, whereas the clinical source details the physiological injury mechanisms, and the payer article shows its administrative utilization without defining it. 1 2 3

Sources

1. ICD-10-CM S24.109D terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Bookshelf — ncbi.nlm.nih.gov; accessed 2026-07-27.
3. Article - Billing and Coding: Somatosensory Testing (A57540) — cms.gov; accessed 2026-07-27.