Nondisp fx of distal phalanx of unsp thumb, init for clos fx

This code signifies a break in the bone at the very tip of the thumb, specifically the phalanx furthest from the hand, without any significant displacement of the bone fragments. The skin over the fracture remains intact, indicating a closed injury. This diagnosis is made when the specific thumb (left or right) is not documented.

Apply this code for a patient presenting with a newly diagnosed, non-displaced fracture of the distal phalanx of the thumb, where the laterality (left or right) is not specified in the medical record. This is appropriate for the initial treatment encounter for such a closed injury.

• Ensure the documentation explicitly states "nondisplaced" and "distal phalanx" of the thumb.
• Only use this code when the laterality of the thumb is truly unspecified; otherwise, a more specific code should be chosen.
• The "A" seventh character indicates the initial encounter for active treatment of the fracture.