Blister (nonthermal), unspecified lesser toe(s), subs encntr

This code signifies a non-heat-related fluid-filled lesion on an unspecified lesser toe, indicating that the patient is receiving follow-up care for this condition. The blister is not due to burns or frostbite but rather other causes such as friction, pressure, or allergic reactions.

Use this code when documenting subsequent encounters for a patient presenting with a blister on any lesser toe (toes 2-5) that is not caused by thermal injury. This includes office visits, hospital outpatient visits, or other follow-up care related to the initial blister.

• Ensure the documentation clearly states the blister is non-thermal and located on a lesser toe.
• Confirm this is a subsequent encounter; for the initial encounter, a code with an "A" seventh character would be appropriate.
• If the specific lesser toe (e.g., second, third) is documented, a more specific code should be sought.