Blister (nonthermal) of abdominal wall, subsequent encounter

This code signifies a non-heat-related fluid-filled lesion on the skin of the abdomen that is being treated or evaluated after the initial encounter. It indicates a secondary visit for a blister that was not caused by burns, frostbite, or other thermal injuries.

This code is appropriate for follow-up appointments, wound care visits, or re-evaluations of an existing non-thermal blister on the abdominal wall. It should be used when the patient presents for ongoing management of the blister after the initial diagnosis and treatment.

• Ensure documentation clearly states the blister is non-thermal and located on the abdominal wall.
• Verify this is not the initial encounter for the blister; if it is, a code without the "D" seventh character should be used.
• Look for documentation of wound care, dressing changes, or re-assessment of the blister's healing progress.