Blister (nonthermal) of right upper arm, initial encounter

This code signifies a non-burn related blister located on the patient's right upper arm. This type of blister typically results from friction, pressure, or a localized skin reaction, rather than exposure to heat or chemicals. It indicates the initial presentation and treatment of this specific injury.

Use this code when documenting a patient presenting with a blister on their right upper arm that is clearly not caused by a burn. This would include blisters from repetitive rubbing, ill-fitting clothing, or a localized allergic contact dermatitis. It is appropriate for the first visit related to this particular blister.

• Ensure the documentation specifies the blister is on the right upper arm and is nonthermal.
• Verify this is the initial encounter for this specific injury; subsequent visits would use a different seventh character.
• Consider additional codes for the underlying cause if known and clinically relevant (e.g., contact dermatitis).