Blister (nonthermal) of left ring finger, sequela

This code signifies a non-heat-related blister located on the left ring finger, representing a residual effect or complication of an earlier injury or condition. This means the blister is not due to burns or frostbite, but rather from other causes like friction, allergic reactions, or skin disorders, and is now a long-term consequence.

Use this code when documenting a patient presenting with a non-thermal blister on their left ring finger that is a sequela of a previous injury or condition. This applies to situations where the original cause of the blister has resolved, but the blister itself persists as a chronic issue or complication.

• Always ensure documentation clearly states the blister is non-thermal and located on the left ring finger.
• Verify that the medical record explicitly identifies the blister as a sequela, indicating it's a residual effect rather than an acute injury.
• Code any underlying or original condition that led to the sequela, if still relevant and documented.