S92.002B Unspecified fracture of left calcaneus, initial encounter for open fracture

ICD-10-CM S92.002B: Unspecified Fracture of Left Calcaneus, Initial Encounter for Open Fracture

ICD-10-CM code S92.002B identifies an unspecified fracture of the left calcaneus during an initial encounter for an open fracture. The calcaneus is the most frequently injured foot bone, accounting for 1 to 2 percent of all body fractures. This reference page synthesizes public source excerpts regarding clinical context, code structure, and documentation considerations for this diagnosis. 1 3 5

What this code represents

The ICD-10-CM code S92.002B corresponds to the diagnosis of an unspecified fracture of the left calcaneus, initial encounter for open fracture. This code is listed among other specific calcaneal fracture codes, including S92.002A for closed fractures and S92.001B for right calcaneus open fractures. 3 5

Plain-language overview

The calcaneus is the most frequently injured foot bone, accounting for 1 to 2 percent of all fractures in the body. The primary fracture line divides the calcaneus coronally into an anteromedial fragment and a posterolateral fragment due to an eversion moment. 1

Clinical context

Radiography is the primary imaging modality for diagnosing calcaneal fractures, utilizing lateral, anteroposterior, oblique, and axial views. Computed tomography is crucial for understanding the three-dimensional anatomy of the fracture and facilitating surgical planning. 1

Open fractures necessitate intravenous antibiotics, surgical debridement, and delayed definitive fixation until appropriate recovery of the soft-tissue envelope has occurred. Displaced intra-articular calcaneal fractures are now treated with open reduction and internal fixation. 2

Documentation considerations

Clinicians link S92.002B to objective findings, time course, and a plan of care. Chart review for this code supports decision continuity from triage through discharge, while presentation is driven by focal tenderness, swelling trajectory, and neurologic status. 4

Differential diagnosis for S92.002B includes condition-specific mimics around fracture management, plus high-risk alternatives such as occult fracture, vascular compromise, nerve injury, infection, and referred pain syndromes. Prognosis is influenced by injury severity, comorbidities, treatment timeliness, and follow-up quality. 4

What the sources add

The CMS source lists S92.002B within a Medicare preventive coverage article for certain vaccines, while the Unbound Medicine source provides the broader code tree context. The CMS listing establishes the code's official display label, and the Unbound Medicine source shows its relationship to other calcaneal fracture codes. 3 5

The clinical literature sources describe the mechanism and surgical management of calcaneus fractures, including the use of extensile lateral approaches and minimally invasive sinus tarsi approaches. The coding reference source provides practical chart review guidance for linking the code to clinical findings and care plans. 1 2 4

Sources

1. Current Concepts in Intra-articular Calcaneus Fractures — pmc.ncbi.nlm.nih.gov; accessed 2026-07-25.
2. Open Reduction and Internal Fixation of Intra-Articular Calcaneal Fractures Via an Extensile Lateral Approach — pmc.ncbi.nlm.nih.gov; accessed 2026-07-25.
3. Article - Billing and Coding: Medicare Preventive Coverage for Certain Vaccines (A54767) — cms.gov; accessed 2026-07-25.
4. Unspecified Fracture Of Left Calcaneus, Initial Encounter For Open Fracture | ICD-10-CM S92.002B Clinical Guide — sprypt.com; accessed 2026-07-25.
5. ICD-10-CM 2024 | S92.0 - Fracture of calcaneus — unboundmedicine.com; accessed 2026-07-25.