S25.819D Laceration of other blood vessels of thorax, unspecified side, subsequent encounter

ICD-10-CM S25.819D: Laceration of other blood vessels of thorax, unspecified side, subsequent encounter

ICD-10-CM code S25.819D identifies a laceration of other blood vessels of the thorax on an unspecified side during a subsequent encounter. This active diagnosis concept is classified under an injury or poisoning semantic type and is distinct from sequela variations listed in vascular imaging references. 1 4

Plain-language overview

This diagnosis code represents an active injury concept for a lacerated thoracic blood vessel, specifically denoting a subsequent encounter for this injury on an unspecified side. 1

What this code represents

The code S25.819D is a child of S25.819 and carries a semantic type of injury or poisoning, specifically denoting a subsequent encounter for this thoracic blood vessel laceration. 1

Coding details

The seventh character D distinguishes this subsequent encounter code from the sequela code S25.819S, which is listed separately in vascular imaging diagnosis references. 4

An official terminology record lists the published abbreviation for this diagnosis as laceration of oth blood vessels of thorax, unsp side, subs, confirming its active status. 1

Documentation considerations

The official terminology record establishes that this specific code denotes a subsequent encounter on an unspecified side, while a payer article separately references a right side sequela code. 1 3

Clinical context

Hemorrhage leading to a hemothorax can originate from the chest wall, intercostal vasculature, internal mammary arteries, great vessels, mediastinum, myocardium, or lung parenchyma. 2

Coverage and utilization context

A Medicare billing and coding article references a related thoracic blood vessel laceration diagnosis, demonstrating that such injury codes appear in payer guidance for vascular studies. 3

What the sources add

While the official terminology record defines the code structure, the vascular imaging reference places it alongside S25.819S, and the Medicare article provides operational context for related vascular diagnosis coding. 1 3 4

Questions to verify

Reviewers can compare the unspecified side designation in the official terminology record against the right side sequela code mentioned in the Medicare article to identify distinct coding variations. 1 3

Sources

1. ICD-10-CM S25.819D terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Hemothorax: A Review of the Literature — pmc.ncbi.nlm.nih.gov; accessed 2026-07-27.
3. Article - Billing and Coding: Non-Invasive Vascular Studies (A56697) — cms.gov; accessed 2026-07-27.
4. 936 Vascular Imaging CPT, HCPCS and Diagnoses Codes — bluecrossma.org; accessed 2026-07-27.