S62.648A Nondisplaced fracture of proximal phalanx of other finger, initial encounter for closed fracture

ICD-10-CM Code S62.648A: Nondisplaced fracture of proximal phalanx of other finger, initial encounter for closed fracture

ICD-10-CM code S62.648A identifies an initial encounter for a closed, nondisplaced fracture of the proximal phalanx of an other finger. The proximal phalanx is fractured more frequently than the middle or distal phalanges. This code is distinct from adjacent codes that specify the index, middle, ring, or little fingers, as well as codes for unspecified fingers. 1 3

Plain-language overview

The proximal phalanx of the fingers is fractured more frequently than the middle or distal phalanges, and these fractures are often neglected or regarded as trivial injuries. 1

What this code represents

Code S62.648A represents a nondisplaced fracture of the proximal phalanx of other finger, initial encounter for closed fracture, distinguishing it from adjacent codes that specify the index, middle, ring, or little fingers. 3

Coding details

The code S62.648A is listed alongside specific codes for right and left index, middle, ring, and little fingers, as well as a code for an unspecified finger, all denoting an initial encounter for a closed fracture. 3

Clinical context

Selection of the optimum treatment for closed proximal phalangeal fractures depends on fracture location, fracture geometry, deformity, whether they are open or closed, and fracture stability. 1

Nonoperative treatment is suitable for stable, nondisplaced fractures, but may yield suboptimal outcomes in displaced or intra-articular fractures due to inadequate stability and potential malunion. 2

What the sources add

While the billing code lookup provides the specific structural classification and encounter designation for this diagnosis, the clinical study analyzes treatment outcomes for closed proximal phalangeal fractures. 1 3

The clinical literature distinguishes between stable, nondisplaced fractures and displaced or intra-articular fractures, whereas the code S62.648A specifically designates a nondisplaced closed fracture. 2 3

Documentation considerations

The clinical study analyzed the outcome of various treatment modalities for closed proximal phalangeal fractures, including closed reduction with buddy strapping and splint technique, and closed reduction and internal fixation technique. 1

Sources

1. Outcome of closed proximal phalangeal fractures of the hand — pmc.ncbi.nlm.nih.gov; accessed 2026-07-26.
2. Suzuki Frame for Complex Base of Thumb Proximal Phalanx Fractures — pmc.ncbi.nlm.nih.gov; accessed 2026-07-26.
3. Medical Billing Code Search — app.drchrono.com; accessed 2026-07-26.