Blister (nonthermal) of left elbow, initial encounter

This code describes a non-heat-related fluid-filled lesion on the left elbow. This blister is typically caused by friction, pressure, or a localized skin reaction, rather than burns or frostbite. It indicates the first time this specific injury is being treated.

Apply this code when documenting a patient presenting with a blister on their left elbow that is clearly not due to thermal injury. This is appropriate for initial evaluations and treatments of such a lesion, such as after a fall or sustained pressure.

• Ensure the documentation explicitly states the blister is nonthermal and located on the left elbow.
• Confirm this is the patient's first encounter for this specific injury; subsequent care would require a different encounter character.
• Look for associated documentation regarding the cause of the blister (e.g., friction, contact dermatitis) to support the nonthermal etiology.