Blister (nonthermal) of left middle finger, init encntr

This code signifies a non-burn related blister located on the middle finger of the patient's left hand. This type of blister typically results from friction, pressure, or contact with irritants, rather than heat or chemical exposure. It indicates the initial presentation and treatment of this specific injury.

Apply this code when documenting a patient's first visit for a blister on their left middle finger that is not caused by a thermal injury. Examples include blisters from repetitive gripping, ill-fitting gloves, or minor contact dermatitis. This code is appropriate for the initial evaluation and management of such a lesion.

• Ensure the documentation clearly specifies the left middle finger and confirms the non-thermal etiology of the blister.
• Verify that this is indeed the initial encounter for this specific injury; subsequent encounters will require a different seventh character.
• Distinguish carefully between blisters caused by friction/pressure and those resulting from burns, which fall under a different code series.