S93.32 Subluxation and dislocation of tarsometatarsal joint

ICD-10-CM S93.32: Subluxation and dislocation of tarsometatarsal joint

ICD-10-CM code S93.32 designates an injury or poisoning concept for the subluxation and dislocation of the tarsometatarsal joint. This joint complex is critical for foot stability and gait, and injuries range from mild subluxation to complete dislocation. These injuries involve disrupted ligaments or fractures of the midfoot bones and account for a fraction of all fractures. 1 2 3

What this code represents

Code S93.32 is formally classified under the semantic type of injury or poisoning, representing the medical diagnosis of a subluxation and dislocation of the tarsometatarsal joint. 3

Plain-language overview

The tarsometatarsal joint complex plays a critical role in maintaining foot stability and enabling normal gait, and injuries to this area can range from mild subluxation to complete dislocation. 1 2

Clinical context

Disruptions to the tarsometatarsal joint complex can involve sprains, joint widening, dislocations, or crush injuries, and delayed or inadequate treatment may result in chronic pain, deformity, and posttraumatic arthritis. 1

Lisfranc injuries affect the normal stability, alignment, and congruency of the tarsometatarsal joints and account for 0.2% of all fractures, arising from disrupted ligaments or fractures of the proximal metatarsal bones or distal cuneiform and cuboid bones. 2

Documentation considerations

Physical examination of a tarsometatarsal joint injury reveals swelling localized primarily to the midfoot region, particularly along the medial border of the first tarsometatarsal joint. 1

A bony prominence along the medial border of the first tarsometatarsal joint indicates subluxation and represents a specific finding in subtle, chronic Lisfranc injuries initially misdiagnosed as sprains. 1

What the sources add

While the semantic reference establishes the formal code definition, the clinical literature adds that up to one-third of Lisfranc injuries are misdiagnosed, highlighting a practical challenge in identifying this specific condition. 2 3

The clinical literature specifies that Lisfranc dislocations result from high- and low-energy trauma, including motor vehicle collisions, direct crush injuries, falls from heights, or axial forces applied to a plantarflexed forefoot. 1

Questions to verify

The supplied sources do not establish the specific encounter type modifiers, laterality designations, or the exact category hierarchy for the S93.32 code within the ICD-10-CM system. 3

Sources

1. Bookshelf — ncbi.nlm.nih.gov; accessed 2026-07-25.
2. Lisfranc Injury Diagnosis: What Is the Diagnostic Reliability of New Radiographic Signs Using Three-dimensional CT? — pmc.ncbi.nlm.nih.gov; accessed 2026-07-25.
3. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-25.