Blister (nonthermal) of nose, subsequent encounter

This code signifies a non-thermal blister located on the nose that is being treated or evaluated during a subsequent visit. This typically involves a fluid-filled lesion on the nasal skin resulting from friction, pressure, or other non-burn related trauma.

Apply this code for follow-up appointments where a patient is receiving ongoing care for a blister on the nose, such as wound care, monitoring for infection, or reassessment of healing. Documentation should clearly indicate the blister's location on the nose, its non-thermal origin, and that the encounter is not the initial treatment.

• Ensure documentation specifies "subsequent encounter" to differentiate from the initial treatment.
• Distinguish from thermal blisters (burns) which are coded differently.
• Consider additional codes for any underlying cause of the blister, if known and documented.