Blister (nonthermal) of left upper arm, subsequent encounter

This code signifies a non-burn related blister located on the left upper arm, indicating that the patient is receiving follow-up care for this condition. This could include ongoing treatment, monitoring, or management of complications after the initial injury or diagnosis.

Use this code for subsequent visits where a patient is being treated for a blister on their left upper arm that was not caused by heat or cold. This applies to scenarios such as wound care, re-evaluation of the blister, or management of infection related to the blister during a follow-up appointment.

• Ensure the documentation clearly specifies "left upper arm" and "blister (nonthermal)."
• Verify the encounter is for follow-up care, not the initial presentation, to justify the "D" seventh character.
• Always review the medical record for the cause of the blister to confirm it is non-thermal.