Sprain of coccyx

This code signifies a ligamentous injury to the coccyx, commonly known as the tailbone. It involves the stretching or tearing of the ligaments supporting the coccyx, often resulting in localized pain and tenderness. This condition is typically acute and can be quite debilitating, especially when sitting.

This code is appropriate for patients presenting with acute or subacute pain in the coccygeal region following trauma, such as a fall directly onto the buttocks. Documentation should clearly indicate a diagnosis of coccyx sprain, often supported by physical examination findings of localized tenderness and absence of fracture on imaging.

• Differentiate from coccydynia (pain in the coccyx without clear ligamentous injury) which may be coded differently.
• Ensure documentation specifies "sprain" rather than "contusion" or "fracture" of the coccyx.
• Consider sequencing with external cause codes (E-codes) if the injury resulted from an accident, providing more complete clinical context.