The hamate is a wedge-shaped bone located on the outside of the wrist on the small-finger side. It has a projection on the side of the bone called “the hook of hamate.” This hook is susceptible to a fracture from a direct blow to the wrist or a stress fracture from overuse of the wrist.
ICD-10-CM Code for Unspecified fracture of right wrist and hand, initial encounter for closed fracture S62. 91XA.
Fractures of the hook of the hamate comprise 2 to 4 % of all carpal fractures and occur most frequently among individuals who play golf, racquet sports, or baseball [24].
Body of the hamate fracture is a consequence of a direct blow over the hypothenar eminence or a considerably strong dorsopalmar compression. A body fracture may also accompany high energy trauma resulting in wrist fracture-dislocations. Body fractures can lead to axial carpal instability.
Unspecified fracture of unspecified wrist and hand, initial encounter for closed fracture. S62. 90XA is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM S62.
In ICD-10-CM a fracture not indicated as displaced or nondisplaced should be coded to displaced, and a fracture not designated as open or closed should be coded to closed. While the classification defaults to displaced for fractures, it is very important that complete documentation is encouraged.
Structure. The hamate has a wedge-like shape with a distinct bony process called hook of hamate that extends from the palmar surface. It is situated in the distal row of carpal bones on the medial side of the wrist.
What causes a hook of hamate fracture? A hook of hamate fracture in the wrist can occur from swinging a golf club, tennis racket or baseball bat, particularly if it suddenly hits an immovable object. For example if you swing a golf club hard and it strikes the floor instead of the ball.
Nonsurgical treatment consists of immobilization in a brace, splint, or cast for upwards of 6 weeks. Despite immobilization, a large number of Hook of Hamate fractures go on to a nonunion, which means they do not heal. This occurs in 40-50% of cases.
The hamate is a wedge-shaped carpal bone. It is located on the outside area of the wrist, which is the same side as the pinkie finger. The hamate articulates—meaning it meets or connects with—five other bones. Three of these bones are also carpals: the lunate, triquetral, and capitate.
The most common treatment, especially for an athlete, is to surgically remove the broken hook of the hamate. 2 The reliability of recovery from this surgery is very good. Athletes typically take 6-8 weeks to recover from this surgery and return to sports.
Hamate fractures are unfrequent injuries, accounting for 2 to 4% of carpal fractures. [6][7][8][9] Distal carpal row fractures are less common than first row fractures. Hamate fractures (hook and body) tend to occur in young, active patients. They are unusual in children.