Sprain of interphalangeal joint of left thumb, subs encntr

This code indicates a sprain affecting the joint between the two bones of the left thumb, specifically when the patient is receiving follow-up care for this injury after the initial treatment phase. It signifies ligamentous damage to the interphalangeal joint of the left thumb.

Apply this code for patients presenting for subsequent care, such as physical therapy, follow-up appointments, or medication refills, related to a previously diagnosed sprain of the left thumb's interphalangeal joint. This is used after the initial acute treatment has been rendered.

• Ensure documentation clearly specifies the left thumb and the interphalangeal joint.
• The "D" seventh character indicates a subsequent encounter, meaning the patient is in the healing or recovery phase.
• Confirm the injury is a sprain (ligamentous injury) and not a fracture or dislocation.