S14.145S Brown-Sequard syndrome at C5 level of cervical spinal cord, sequela

ICD-10-CM S14.145S: Brown-Sequard Syndrome at C5 Level, Sequela

ICD-10-CM code S14.145S represents Brown-Sequard syndrome at the C5 level of the cervical spinal cord, sequela. This active terminology record is classified under the semantic type of injury or poisoning. The code appears in Medicare billing articles for urodynamics and nerve conduction studies alongside subsequent encounter descriptions. 1 3 4

Plain-language overview

Brown-Sequard syndrome is the eponymous description of spinal cord hemisection, and the S14.145S code denotes the sequela of this condition specifically at the C5 level of the cervical spinal cord. 1 2

What this code represents

The S14.145S terminology record is active and carries the semantic type of injury or poisoning, establishing its classification within the ICD-10-CM system for this specific C5 cervical spinal cord condition. 1

Within the ICD-10-CM hierarchy, S14.145S has a parent concept designated as S14.145 for Brown-Sequard syndrome at the C5 level of the cervical spinal cord. 1

Coding details

The S14.145S code is distinct from the S14.146 code, which represents Brown-Sequard syndrome at the C6 level of the cervical spinal cord, demonstrating the specificity of spinal cord injury levels. 5

Documentation considerations

Medicare billing articles list S14.145S with the full description of Brown-Sequard syndrome at the C5 level of the cervical spinal cord, sequela, alongside a reference to a subsequent encounter. 3 4

Clinical context

Brown-Sequard syndrome is most frequently associated with trauma, while interrupted flow to the upper anterior spinal artery can arise in the setting of trauma, abrupt head-turning, cocaine abuse, and chiropractic manipulation. 2

Coverage and utilization context

The S14.145S code appears in Medicare billing and coding articles for urodynamics and nerve conduction studies, providing operational context for its administrative use in these specific service categories. 3 4

What the sources add

While the National Cancer Institute record defines the active terminology and hierarchy for S14.145S, Medicare billing articles provide operational context by listing the code alongside subsequent encounter descriptions. 1 3

A clinical reference source describes Brown-Sequard syndrome as a spinal cord hemisection, adding disease pathology context that is absent from the purely administrative terminology and billing records. 1 2

Sources

1. ICD-10-CM S14.145S 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: Urodynamics (A57455) — cms.gov; accessed 2026-07-27.
4. Article - Billing and Coding: Nerve Conduction Studies and Electromyography (A54992) — cms.gov; accessed 2026-07-27.
5. https://tandf.figshare.com/ndownloader/files/26548399 — tandf.figshare.com; accessed 2026-07-27.
6. S14.145 — Brown-Sequard syndrome at C5 level of cervical spinal cord | ICD-10 Code · Eleplan — eleplan.com; accessed 2026-07-27.