S91.01 Laceration without foreign body of ankle

ICD-10-CM Diagnosis Code S91.01: Laceration without foreign body of ankle

ICD-10-CM code S91.01 identifies a laceration without a foreign body of the ankle. The active terminology record classifies this diagnosis under the parent code for open wounds of the ankle. Medicare billing articles list more specific codes that include laterality and encounter details for this condition. 1 3 4

Plain-language overview

Code S91.01 represents a medical diagnosis for an ankle laceration where no foreign body is present in the wound, and the semantic type is classified as an injury or poisoning concept. 1

What this code represents

The S91.01 diagnosis code is an active terminology record that has S91.0, the broader category for an open wound of the ankle, listed as its parent concept. 1

The terminology record for S91.01 indicates that this specific code has no narrower concepts within the ICD-10-CM version 2026 hierarchy, meaning no more specific subcodes branch from it. 1

Coding details

A billing and coding article lists S91.011D as a code for a laceration without a foreign body of the right ankle during a subsequent encounter, and S91.011S for another encounter type. 4

A billing and coding article identifies S91.012A as the code for a laceration without a foreign body of the left ankle during the initial encounter, and S91.021A for a different condition. 3

Documentation considerations

Clinical evaluation of traumatic lacerations involves documenting the mechanism of injury to identify factors that increase the risk of wound complications, such as contamination from foreign material or crush injuries. 2

Clinical documentation for lacerations with entrained foreign bodies may include details about imaging, wound scrubbing, and foreign body removal, as illustrated by a case involving wood chips in an extremity laceration. 2

What the sources add

The National Cancer Institute terminology record defines the hierarchical structure of S91.01, while a Medicare billing article lists specific codes for this condition that include laterality and encounter details. 1 3

A clinical reference text discusses the physical management of lacerations with foreign bodies, while the S91.01 terminology record specifies an ankle laceration diagnosis where no foreign body is present. 1 2

Sources

1. ICD-10-CM S91.01 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: Immune Globulins (A57554) — cms.gov; accessed 2026-07-27.
4. Article - Billing and Coding: Debridement Services (A56459) — cms.gov; accessed 2026-07-27.
5. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.