Blister (nonthermal) of right middle finger, subs encntr

This code indicates a non-heat related fluid-filled lesion on the right middle finger. It signifies that the patient is presenting for follow-up care or treatment of a previously diagnosed blister, rather than the initial injury.

This code is appropriate for subsequent visits related to a blister on the right middle finger that was not caused by a burn or frostbite. Examples include follow-up appointments for wound care, infection monitoring, or re-evaluation of healing progress.

• Ensure the blister is explicitly documented as nonthermal; otherwise, a burn code may be more appropriate.
• Verify the encounter is for follow-up care, not the initial presentation, to justify the "D" seventh character.
• Confirm the laterality and specific digit (right middle finger) are clearly documented in the medical record.