Blister (nonthermal) of right index finger, subs encntr

This code signifies a non-heat-related fluid-filled lesion on the right index finger that is being treated or evaluated after the initial encounter. This blister is not caused by burns or frostbite, but rather by friction, pressure, or other non-thermal mechanisms.

Use this code when a patient presents for follow-up care, such as wound checks, dressing changes, or further evaluation of a blister on their right index finger that was previously diagnosed. This applies to situations where the blister is still present or complications are being managed during a subsequent visit.

• Ensure the documentation clearly specifies the right index finger and confirms the non-thermal etiology of the blister.
• Verify that this is not the initial encounter for the blister; if it is, a different 7th character (A) would be appropriate.
• Always review the medical record for any associated conditions or complications that may require additional coding.