S92.405B Nondisplaced unspecified fracture of left great toe, initial encounter for open fracture

ICD-10-CM S92.405B: Nondisplaced Unspecified Fracture of Left Great Toe, Initial Encounter for Open Fracture

ICD-10-CM code S92.405B identifies an active injury concept for a nondisplaced, unspecified fracture of the left great toe during an initial encounter for an open fracture. The terminology record classifies this concept under the parent code S92.405 and assigns it the semantic type of Injury or Poisoning. 1 2

Plain-language overview

This diagnosis code represents an active injury concept for a nondisplaced, unspecified fracture of the left great toe during an initial encounter for an open fracture. 1

What this code represents

The terminology record assigns S92.405B the semantic type of Injury or Poisoning and lists its parent concept as S92.405, which is the nondisplaced unspecified fracture of the left great toe. 1

Coding details

The official published abbreviation for S92.405B is nondisp unsp fracture of left great toe, init for opn fx, and the terminology record indicates this code has narrower concepts. 1

Code S92.405B is listed alongside S92.405A, which represents a nondisplaced unspecified fracture of the left great toe during an initial encounter for a closed fracture. 4

Documentation considerations

The official terminology record for S92.405B specifies the left great toe, an initial encounter for an open fracture, and a nondisplaced unspecified fracture classification. 1

What the sources add

The National Cancer Institute terminology record provides the official preferred name and active status for S92.405B, while the Unbound Medicine code tree lists this code among various great toe fracture specifications. 1 4

The EVS Explore portal confirms the code S92.405B maps to the preferred name nondisplaced unspecified fracture of left great toe, initial encounter for open fracture within the ICD10CM vocabulary. 2

A separate EVS Explore entry for the parent concept S92.405 lists S92.405B alongside S92.405S, which is labeled as a nondisplaced unspecified fracture of the left great toe. 3

Sources

1. ICD-10-CM S92.405B terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.
3. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.
4. ICD-10-CM 2024 | S92.40 - Unspecified fracture of great toe — unboundmedicine.com; accessed 2026-07-27.