Lacerat intrinsic musc/fasc/tend thmb at wrs/hnd lv, subs

This code signifies a tear or cut to the deep muscles, connective tissue, or tendons within the thumb, specifically at the wrist or hand level. It indicates that the injury is being treated in a follow-up visit after the initial encounter.

This code is appropriate for subsequent encounters (e.g., follow-up appointments, cast changes, physical therapy sessions) for a patient recovering from a laceration to the intrinsic muscles, fascia, or tendons of an unspecified thumb. It should be used when the initial treatment for the injury has already been rendered.

• Ensure the encounter is truly subsequent and not the initial treatment for the injury.
• Confirm the injury location is specifically the intrinsic structures of the thumb at the wrist/hand level.
• Verify laterality (left, right, or unspecified) if known; this code is for unspecified laterality.